Document o9grgD5931R6JnQ9NgYRR59xE

IfIff ?. 1/Ko Koppers Buiit-up Roofs and . Koppers System Roofs 2 PLAINTIFF'S | EXHIBIT i BEAr11 KOPPERS Architectural and Construction Materials SC-BE-07140 /"n preface This manual contains recom mended roofing specifications and procedures which are baaed on the many years of Koppera experience and accepted good roofing practice. They are intended to provide the architect, engineer, general contractor and roofer with the proper informa tion to plan and construct the beat roofing systems with the most time- proven materials available today. The availability of a Koppors surety bond and guarantee for roofing and flashing constructed according to the information contained in this man ual under Koppera bond and guaran tee procedure, which customarily includes inspection by Koppers dur ing application, and the publishing of these specifications and informa tion shall not be construed as creat ing any warranty, expressed or im plied, with regard to any roofing or flashing for which a bond has not been issued. This roofing manual supersedes all previous roofing manuals and liters- f~ ture published by Koppers. - The specifications and details con tained in this manual have been deter mined to cover the proper procedures for long lasting roofing systems for most areas of our country. In certain locations, minor variations in details and specifications may be appropri ate due to unusual local conditions, such as wind, temperature, humidity, etc. To assure the best application of the proper specifications and de tails for your area, we recommend consulting our roof structure system specialist . . . your locai Koppers sales representative. KOPPERS 7.1/Ko Architectural and Construction Materials INDEX 1. Old Style Pitch Roofing Material and System Discussion 2. Koppers System Roof Material and System Discussion 3. General Requirements and Special Conditions 3.1 Built-up Roofing 3.2 InsulattOH^ 3.3 Other Requirements 4. Koppers Old Style Pitch Roof Specifications deck construction no. of plies 4.1 Wood Plank/Plywood 4.2 Poured Portland Cement Concrete 4.3 Precast Structural Concrete Sections 4.4 Gypsum (Poured and Plank) and Lightweight Insulating Concrete 4.5 Metal Decks (Insulated) 4.6 Water Cooled Roofs and Water Retaining Roofs 4.7 Wood Fiber 4.8 Oycon* Concrete over Metal Centering 4.9 DyconO Concrete over Structural Concrete 4.10 Dycon Concrete over Formboard and Bulb-Tees 5 4 4 3 4 3 5 4 4 3 4 3 4 3 5 4 5 4 4 3 S. Koppers System Roof Specifications deck construction 5.1 Wood Plank/Plywood 5.2 Structural Concrete 5.3 Metal Deck KSR Reference Data 2 2 2 6. Flashing Specifications 7. Flashing Details 8. Guaranteed and Bonded Roofing Programs 8.1 Koppers Guaranteed Roofing (KSR only) 8.2 Koppers Bonded Roofing basic spec. no. 1 2 5 7 10 11 12 13 17 18 23 24 27 28 50 51 60 81 70 bs 71 bs 30 31 32 30 31 PAGE 4 5 6-10 6 9 9 11-20 11 12 13 14 15 16 17 18 19 20 21-23 22 23 24-25 26-29 30-31 NOTE For re-roofing, steep and smooth surfaces, and decks or insulations not covered in these specifications, consult your nearest Koppers Sales Office. 3 Old Style Pitch Roofing Coal Tar Roofing Pitch Tar is a very familiar word, how ever it has different meanings for different people. To many it is any black liquid adhesive or plastic sub stance; however, it is much more than this. It is a hydrocarbon, mean ing it is composed primarily of car bon and hydrogen and is therefore an organic compound. Tar is obtained from the "destruc tive distillation" of coal, primarily bituminous coal. This means when coal is heated to very high tempera tures without contact with air (thus not allowing the combustion of coal and its derivatives) the coal mole cules in effect are "cracked" into little molecules (gas), medium mole cules (tar) and coke. We see, there fore, that the more proper term is Coal Tar. Coal tar, through further distillation processes, is refined and separated into products of great commercial usefulness and value; PITCHES--of various consisten cies such as roofing material, waterproofing products, protec tive coatings for metals, mason ry, etc. CREOSOTE--for wood-preserving. CHEMICAL OILS--for use in the manufacture of drugs, dyes, paints, varnishes, cosmetic*, plastics, synthetic rubber, etc; Coal tar is indeed a vital and valu able product that produces materials for many industries in our world of today. in the ever-growing construction industry a very valuable tar derivative is Coal-Tar Roofing Pitch. Its value is found in the fact that it has superb water and corrosive resistance quali ties as well as being an excellent adhesive especially applicable in adhering the tarred roofing felts to gether in buiit-up-roofing. These qualities are due to the unique prop erty that was endowed to it by na ture. Without going into a highly technical chemical analysis it can be most simply stated that Coal Tar Roofing Pitch is a balanced organic compound. The atoms in Roofing Pitch--carbon (C) and hydrogen (H) '--have a very strong molecular at traction or bond one to another and hence attacking atoms of oxygen (Q) cannot attach themselves to the hy drogen atoms of Roofing Pitch and form a water molecule (H 0) that will be absorbed into the pitch. Coal Tar Roofing Pitch is therefore inherently resistant to molecular penetration by water. Coal Tar Roof ing Pitch is nature's own balanced answer to waterproofing (roofs and elsewhere), adhesive bonding, and chemical resistance, especially to waterborne chemicals. Coal Tar Pitch Built-up Roofing Koppers coal tar pitch built-up roofing systems consist of layers of Koppers Old Style Pitch and Koppers approved tarred felt, surfaced with a heavy top pouring of Koppers Old Style Pitch into which is embedded an aggregate. Koppers coal tar pitch built-uproofing systems are used whenever a roof is exposed to water and/or cor rosion and on ail level or low sloped roofs where long, maintenance-free service is required. Particularly rec ommended for: All 'dead' level roofs All water cooled roofs , Low sloped roofs with retarded drainage Low sloped roofs with occasional water ponding (Note: coal tar pitch roofs are especially suitable to withstand the water attack around drainage areas on roofs that are pitched to the drains.) All buildings with level or low sloped roofs that are built for long service life Coal tar pitch built-up roofing pro vides one of the most durable roofing membranes known. The advantages are found in the inherent superior characteristics of coal tar pitch for this purpose. This is the time-proven roofing system for level and low sloped roofs. Coal tar pitch has a natural resis tance to water, air and water vapor penetration. A tight molecular struc ture enables coal tar pitch to perma nently withstand water penetration and resist oxidation of the roof sur face. Koppers water-cooled roof spe cifications take advantage of the unique water-resistant characteristics of coal tar pitch to give you long term roofing performance. Another unique feature of coal tar roofing is its self-healing ability. Aliigatoring and hairline cracks common Koppers Old Style Pitch Koppers Old Style coal tar roofing pitch is carefully manufactured to standards which have been regularly improved over many years. Koppers Old Style Pitch is manufactured to exceed the minimum requirements of the following specifications: Federal Specification RP381 Type I ASTM D-450 Type A Underwriters' Laboratories, Inc. 4 Koppers No. 15 Tarred Felt Koppers approved tarred felt is manufactured to meet the following specifications: Federal Specification HH-R-595 Type I Class I ASTM D-227 Underwriters' Laboratories, Inc. Koppers No. 15 Tarred Felt nor mally contains 432 square feet, cov ering 4 squares per roll. to most materials, eventually cause damage to the roofing membrane. Coal tar pitch has a property known as "cold-flow" which automatically corrects these conditions before seri ous damage takes place. This "coldflow" feature heals small mechanical fractures at normal temperatures. Time and statistics have proven that coal tar roofing pitch when ap plied in accordance with the specifi cations in this manual results in the highest acceptable quality level of any built-up roofing system. Coal tar pitch is a nature-formed polynuclear targe molecule compound. Coal tar roofing pitch is selectively manufac tured fraction which satisfies the basic requirements for long-term roofing service on level and lowsloped roofs. When you specify Koppers Coal Tar Roofing Systems, you are assur ing your building owner-client of long-term roofing performance. ____________ IMPORTANT Roofing System Guarantee Koopers Company manufactures PUifdmg materials, it does -ot practice architecture nor engineering. The tooting systems nciuaea hereafter wifi. we Deneve, result n satisfactory installations when property ap plied We make no ,mphed warranties what soever as to materials of our manufacture nor performance of the systems herein cescnped. When our Root Bond is involved the express warranties on our part are only those specifically enumerated therein. No agent, salesman. representative nor em ployee is empowered to change, aiter or amend this provision unless >t done m writing py a duly authorized off>cer or em ployee m this corporate neadcuarters office. Pittsburgh, Pa New Koppers System Roof /*> KOPPERS 7.1/Ko Architectural and Construction Matanats Koppers System Roofs . Koppers Bitumen is therefore in Koppers System Roofs (KSR) are multiple component systems for se herently resistant to molecular pene tration by water. Koppers Bitumen is improved by modern manufactur lected structures designed for board ing processes to obtain the best of type insulation. These systems are nature's own balanced answer to normally for buildings with an interior roofing, adhesive bonding, and chem temperature ranging from 60F. to 85F. and a normal relative humidity below 40 (RH) or ventilated space where a vapor barrier is not eti>ired. ical resistance, especially to water borne chemicals. Koppers KSR Felts The systems are designed to provide Koppers KSR Felts are selected to an ideal interface between compo give the greatest strength to thick nents to permit ease of application ness ratio available from organic and the best conditions for long serv felted membranes. They are heavier ice life with ready low cost mainte and stronger than conventional roof nance features. The systems are kept ing felts, yet are easy to apply. When competitive through the use of the applied in an Insulation/Roofing sys ideal component conditions which tem, two plies develop a roofing skin permit the use of products from the most advanced Bitumen, Felt, and with Koppers Bitumen which is an advance in roofing concepts. Insulation Technology which are more expensive to manufacture. The sys tems consist of Koppers Bitumen, Koppers Felt and Koppers Glass Fi ber/Roof Base Insulation, with Kop pers Insulation Base Tape. Koppers KSR Felt normally con tains 328 square feet, covering 3 squares per roll. Koppers Glass Fiber Insulation/Roof Base Koppers Bitumen Koppers Glass Fiber Insulation/ Roof Base is formed of Glass Fiber In developing Koppers Bitumen, Roof Insulation with a k value of .25 ' Koppers has analyzed, during the with a top surfacing of a selected years 1955 through 1969, Coal Tar bitumen reinforced with a controlled Pitch Roofs ranging in age from 30 pattern, continuous filament type, through 43 years and still in good glass fiber. When installed, a glass condition. Analysis of the Roofing fiber tape of the same type is placed Pitch from these buildings showed in a full mopping and surface coated Pitch of excellent retained service with Steep Asphalt at a rate of ap life and a material chemically un proximately 25 lbs. per square. changed over the years. Only one This roof base (top surface of in change in the original material was sulation) when combined with the noted even in the most severe con joint taped system, as described ditions. As the foremost Coal Tar above, provides a monolithic seal Refiner, Koppers has adjusted the which can be maintained water tight process used to produce Coal Tar during construction periods. It is not Roofing Pitch to produce a material subject to organic fiber moisture type which minimizes this change. The of swelling (blisters). This seal is 2 resultant material is Koppers Bitumen. to 15 times thicker than the conven Like Koppers Coal Tar Roofing Pitch, its value is found in its superb .water and corrosion resistance as well as being an excellent adhesive. tional vapor barriers normally placed beneath the insulation. It becomes an integral part of the finished roof thus providing additional strength This is especially applicable in adher ing the Bitumen saturated roofing felts together in built-up roofing. These qualities are due to the unique property that was endowed to it by nature. It can be most simply stated that Koppers Bitumen is a balanced _ organic compound. The atoms in Koppers Bitumen-carbon (C) and -- hydrogen (H) have a very strong molecular attraction or bond one to another and hence attacking atoms of oxygen (O) cannot attach them selves to the hydrogen atoms of and durabiliy to the performance of the Koppers System Roof. The vapor seal is partially produced under fac tory control and is less susceptible to construction variables than con ventional underside seals. Construc tion damage and later mechanical damage do not have the same devas tating effect on the vapor seal. The base is much less susceptible to moisture being trapped during con struction. Koppers Systems in Roofing Koppers Bitumen and form a water Koppers System Roof consists of molecule (H O) that will be absorbed Koppers Glass Fiber/Roof Base In into the Bitumen. sulation which is developed into a monolithic substrate by the installa tion of a special reinforcing glass fiber tape embedded in and coated with steep asphalt at all insulation joints. To this strengthening surface, two layers of Koppers Felt are in stalled in Koppers Bitumen. The final waterproofing phase is the applica tion of aggregate in a heavy top pour ing of Koppers Bitumen. Koppers System Roofs are designed for build ings with a roof slope of per foot. Special construction variations are available for roofs of Vi"-i" per foot slope where the superior water and chemical resistance of Koppers Bitumen is a requirement. Koppers Bitumen is a self-healing material and thus is highly beneficial to successful roofing. There are cer tain characteristics common to many roofing materials that can cause damage to the roofing membrane:' alligatoring; hairline cracks; move ment of the building structure, during and after construction due to build ing settlement as well as temperature and moisture variations. This self healing or "cold-flow" property of' Koppers Bitumen heals these me chanical fractures at normal tempera tures before serious damage takes place. Forces are developed in all struc tures due to temperature, moisture, and time (aging) changes. Because these forces are very large in rela tion to the possible strength devel oped in a roofing membrane; and because severe long-time weather exposure changes all materials, at tempts to build roofs with strength comparable to structural forces, or long term elasticity have been rarely successful. KSR is based on superior resistance to water and weather; the "cold flow" feature, and the ability to achieve and retain (even develop through "cold flow") adhesion to substrate, membrane, flashing at tachments and aggregate for a long service life. Applicability is one of the most important characteristics of any con struction material. KSR can be readi ly installed on any building; of the type and design for which it is suited: with existing skills and with the level of competence.of contemporary field labor. Further" koppers System Roofs can be installed in the expected weather conditions to be encountered in most constructions. With the ex ception of heavy precipitation or un cleanable frozen surfaces they most nearly approach the principle of "all weather" construction. ,, V 3. GENERAL REQUIREMENTS AND SPECIAL CONDITIONS ROOF STRUCTURE SYSTEM In iny building the performance of ttM Built-up-Roofing will bo affected to torn# dagraa by all of the parts of tha Roof Structura Systam as wall as tha insida and outside atmospheric environment Each component should be Investigated for its compatibility with each of tha oth ers. Tha Roof Structura System may In clude any or all of tha following: Outafde Air Conditions Roofing Systam Peripheral Oatsils (Flashings) Insulation (if present) Vapor Barrier (if present) Structural Deck Including sub purlins (supports) Structural Framing Air Space (If present) Ceiling (if present) interior Air Conditions You wil find Information, in this mam uai, pertaining to materials and applica tion methods other than tar buM-up-raefIng. They are offered to assist the designer in establishing their normal po sition in the Roof Structure System. They should not be construed ae part of the uuucup-nxjnng wwwmm$. < nor as part of the rlaalgnataif apectflcm done other than to establish a suitable rooting baee In the roof structure system The proper dealgn, apecfflcettan and positioning of tha various components of the Roof Structura System la the reapone! bilfty of the building owner or hie de signer. Any subsequent failures, due to either the installation or lack of inatsfle iLui WW frafs nOppW 3.1 BUILT-UP ROOFING 3.1.1 Decks Tha deck is the base over which the built-up roofing, or Insulation and builtup roofing is applied. Where the term deck Is used In this manual' without ref erence to Insulation, it shall daaignata tha surfaca over which roofing is to be ap plied. in the csss of KSR the deck will be the structural base over which the system is sppilsd. All decks shall be clean, smooth, dry, rigid and frae of de bris. Any deck defect shall be corrected before application of roofing. All decks snail be installed in accordance with the deck manufacturer's specifications and shall b# in compliance with Koppers Gen eral Requirements. In approving any deck as satisfactory to receive a Koppers roof, only the deck surface is accepted. It It the responsi bility of the building designer and the deck manufacturer to provide for expan sion and contraction in a manner that will provide a stable base for the roofing; for support of maximum anticipated loads; secure attachments vertically and later ally, and the selection of the deck mate rial and construction datsfls including their ability to contain bitumens. Koppers will not assume responsibility for deck de fects, the affect of deck defects on Koppars roofs, or bitumen seepage. The placing of conduits, bolt heeds, etc., above the roof deck and below the roofing membrane la not recommanded. All projtctiona or openings In the dack should be completed prior to the appli cation of tha roofing. Optimum adhtslon to the deck ie nec essary for good roof performance. Where Koppers Old Styfa Pitch, Kopper Bitumen or steep asphalt Is used for adhesion, questionable decks may be tested for dryness and adhesion by pouring one pint of the bitumen, hatted to application tsmporaturs. over a representative area or areas of the deck. Tha deck la not sat isfactory if the bitumen foams or bubbles, or upon cooling to ambient temperature may be stripped clean of the deck. 3.1.2 Condition* of Surfaca to Receive Roofing Ail surfaces must be dry, reasonably smooth, clean, rigid and free from dabris. loose materials, projections and holas which might causa rupture of the mem brane. Metal Decks: Decks of this type must also be free from loose rust and oily sub stances. Daftaction should not axcaed L/240. Pouted Portland Cement Concrete, Pre cast Structural Concrete Sections, Poured Qypaum, Lightweight Insulating Concrete: Decks of these types with In cline* of one-half (W) inch par foot or more shall permit nailing, or treated nail ing strips must be sat in the dack and installed prior to roofing. Where insula tion la specified, nailing strips may b* secured to the deck surface and shall be level with the surface of the insulation. Those strips should be spaced not more than three (3) feat apart and placed up and down and not across the slop* of the roof. Roof deck shall be property graded to outlets. Precast Docks: (concrete, gypsum, wood fiber) Decks of these types, whether grouted or not shall be caulked with Koppers Flashing Cement which shaft be applied to that tha top surface is level and smooth. Fait stripping four (4) to six (6) inch** wida sat in a troweling of tha cement la recommended to assist In lev eling uneven joints and bridge the joint openings thus providing a batter surface for the roofing materials. Wood Plank/Ptywood: Wood shall be wall Masoned, dry and preferably treat ed. End joints shall have adequate bear ing. Loom or void knot holM, large cracks, etc., shall be covered with sheet metal. Lumbar shall be a minimum of 1' nom inal thickness. Plywood shall be a minimum of W" thickness. 3.1.3 Lightweight Insulating Decks Lightweight Insulating decks Include lightweight aggregate concrete (20 to 40 lbs. per cu. ft Oven dry density); foamed concrete, gypsum and thermosetting as phaltic decks. Except for Dycon6 Con crete a low water content closed cell ag gregate insulating concrete, all other lightweight insulating deck systems must be capable of venting excess water vapor to the underside. Koppers will not accept thMa lightweight inaulating decks to be placed over vapor barriers, poured con crete substrates, unvented metals, on any type of base which will not permit these materials to vent from the underside. It is necessary to prevent a water vapor pnaeure build-up under tha built-up-roof. Occasional, or spot vents through the roofing at the only venting method are not satisfactory subatttutM tar underside or continuous vented systems. In addition, lightweight insulating decks shall have sufficient cohesive strength to provide firm attachment of the roofing to the deck and framing to prevent wind up lift damage or blow-off*. Nailable decks must be capable of developing at the very minimum, a 40 pound nail pull-out or withdrawal strength. If the material* do not achieve this value, additional faatariere will be required over and above thoM quantifies described in the ensuing speci fication (standard is approximately 100 fasteners per square) to achieve our mini mum attachment standard of 30 lb. per square foot Koppers will not be responsi ble for failure of the insulating deck to rsmaln Integral or for disbonding of the roofing from the surface of the deck. Provisions should be made wherever poMlbl* to provide additional venting such as notched wood perimeter nailers, etc., in conjunction with the venting from the underside of the deck. If board type insulation ia to be applied over a light weight Insulating dack. provisions must be made betwMn the fill and tha board Insulation to prevent fill moisture from af fecting the insulation and roofing. 3.1.4 Roof Slopes Koppers recommends that Old Style Pitch roofing specification not bo used on roof slopes in excess of one (1) inch per foot For Koppers Systam Roofs, tha maxi mum slope shall b* one-half (W) Inch per foot On slopes for Old Style Pitch roof* one-half (W) inch or more all falts shall be backnalled. However Koppers does permit slopes up to two (2) InehM per foot at flashings that Incorporate tapered cants and for abort run crickets or saddles tor drainage provided there is adequate back nailing and th*M crickets or saddles do not cover more than 15% 'of tha roof area. 6 KOPPERS 7.1/Ko Aichrtecturaland Construction Materials 3.1.5 Underwriters' Leboretoriee Underwriter*' Leboretoriee, Inc. Build ing Material* Diiectory, Quid* No. (300 018) TFJK--Built-up Roof Covering Mata riala. hM Hated Koppet* Coal Tar Pitch and tarred faits for use In construction of Classes A and B built-up-roof coverings. Kopper* System Roof (KSR) Is also listed as a complete system under Class A designation. This Includes Kopper* Bitu men, KSR insulation and KSR faits. Additional References: Roof Deck Constructions are listed un der U.L. Quid* No. (360 RO) TQKX. Roof Deck Construction Materials, such as vapor barriers, insulations and adhe sives are listed under U.L. Guide No. (360 R 13). TGYV. 3.1.8 Application of Roofing All roofing Is to be built-up in piece with alternate mopping* of bitumen and layers of felt over the proper substrate and preliminary work as described or specified in this book under the several sub-heads for various types of deck con struction and slope. Application is to be made by experienced workmen In the manner described. The flnshed roof Is to consist of the number of pilas of felt and mopping* of bitumen plus top pouring as specified herein. Applicable portions of Kopper* precautions for "Food Establish ments" apply. 3.1.7 Application of Bitumen Recommended Weights per 100 sq. ft (for. estimating purpose* only) Old Style Pitch Koppers Bitumen (KSR) Steep Asphalt Average Interply 25 lbs. 25 lbs. 23ibe. Top Coating 75 lbs. 751b*. 60 lbs. Average interply' weights are based on long years of experience in good roofing practice, and taka into account a reason able variation in distribution as well as a variation in the amount absorbed In dif ferent substrate^:, and the type of specifi cation. Moppingc of bitumen between felts shall be continuous. Felt shall not touch fait The top pouring is most Important and must be thorough; and must be uni formly covered with specification aggre gate embedded in the bitumen while hot When solid mopping is not part of the specification and is substituted by strip & spot moppings (sprinkle mopping may be substituted for spot mopping) for In stallation of vapor barriers, insulation and/or the first ply of the built up roof ing, the quantity of bitumen required shall be not lasa than 10 lbs. per 100 square feet Strip mopping shall be on 8' centers unless otherwise specified and In one di rection. Reoommended Temperature Limitations: Temperature *F Hooted AppScatioft (max.) (min.) (recom.) Old Style. ,, Pitch Koppet* Bttumeh (KSR) 400 300 375 400 300 375 Steep ' Asphalt 475 350 425 Because Kopper* Bitumen (KSR) dis charges an extremely small volume of fume* which are only slightly visible at application temperatures, it is necessary to use an accurate thermometer so that the correct temperature will be known. if heat is desired during a holding peri od at the jobeito while malarial is not be ing drawn off and replenished as under normal usage, kettle temperature should be reduced and not permitted to exceed 350*F for Old Style Pitch and Kopper* Bitumen or 425*F for steep asphalt The kettle should be full. These temperatures are applicable to job conditions and do not apply to holding or storage in kettles In excess of 4 hours. If bitumen Is not to be used for periods over 4 hours kettle should be shut off. Prolonged storage in small containers, such as roofing kettles, at temperatures exceeding those detailed above may re sult in changes in softening point ductil- . Ity, and other characteristics which can adversely affect the performance and life of the bitumen. Old Style Pitch & Kopper* Bitumen may be contained in 1000 gallon or greatar capacity heated and automatically con trolled closed vessel tankers at 375*F for periods, not exceeding 96 hours. 3.1.8 Application of Felt Plies of fait must be laid shingle fash ion. not only because this method pro duces a stronger membrane, but because it also makes it possible to construct a roof of any desired number of piles In a single progressive operation. Whara a water flow direction exists, felts should be applied so that the direction of flow is not against the laps. Broom or press all plies of lait into the hot bitumen and lay without wrinkles, buckles or kinks, so that the finished roof is free of pockets or blisters. Each fait ply shall be completely covered with a uniform mopping of bitu men. The number of plies are controlled by varying the widths of the edge laps. Threeply roofing, for example. Is achieved by lapping each ply approximately two thirds over the preceding ply; for 4-plies, a lap of approximately three fourths the width is required. Kopper*' felts are marked at the factory with lap lines for this purpose. Except as specifically provided for in Kop- pers specifications, application of faits in a method where two plies ars laid over two plies, three plies over one ply. or any combination, other than all plies in shingle fashion, will not be permitted at anytime. Whan beginning a membrane roofing installation, appropriate width starting strips of felt shall be used at th* starting point to achieve the specification ply build-up at that point so that successive plies laid shingla fashion will produca the ply requirements. Overlap ends of ail con necting piles of felt (end laps) not less than 10 Inches. End stripping or taping of these laps is not permitted. It is advisable on applications of felts on slopes from Vi inch to 1 Inch per foot, felts be run with th* slop*, up and over the ridge of the roof (parallel to the slope line) and each sheet back or blind nailed along th* end lap closest to the deck at the high point end of each roll. Koppers recommands that all felts be backnailed when the slope of the deck is one-half (%) inch per foot or more. 3.1.9 Application of Koppers Glass Fiber Insulation/Roof Base (KSR) Koppers Qlasa Fiber insulation/Roof Base sheets shall be stored with the black side up. For storage the sides of the sheets shall be kept free from exposure to driving rain and snow to prevent excessive moisture pick-up. Sheets shall be stored on platforms above puddles, snow. etc. As used in th* Koppers KSR systems the protection required from moisture expo sure is not as great as convantional systems. It is necessary that th* edges or perim eters be unsealed for venting th* insula tion chamber. Ventilated underdeck air spaces are recommended where ceilings are used. It should be noted that th* use of ceilings which are insulated will nor mally require th* use of thicker Kop pers Glass Fiber Insulation/Roof Base to increase th* insulating value and com pensate for th* lower underside deck temperatures resulting from th* insulat ing value of th* ceiling. Roofing equipment should be rubber (elastomer) tired, free from sharp edges or projections and loaded in a manner to prevent puncture or rupture of the roofing system components applied. Protection, cleaning and repair provisions (such as plywood work and storage areas), must be provided to prevent damage from other trades. Broken or damaged Koppers Glass Fiber Insulation/Roof Base can only be used when the undamaged portion is cut out for application areas where fill-in pieces are required. The end and side joints may be laid in continuous straight lines. When more than one layer of Koppers Glass Fiber Insulation/Roof Base Is used, joints In each layer shall not coincide. The prim* recommended adhesive for installing Koppars Glass Fiber Insulation/ Roof Basa it Koppars Staap Asphalt Whan adhssivas othar than this sra dasi rad thsy shall comply with Koppars min imum Attachmant requirements (Saction 3.3.4, paga 10). Thasa adhasivas shall ba appliad in accordanea with tha Spaciflsrs and/or adhasiva manufacturars' requiremants to achiava propar attachmant Howavar tha adhasiva must produca a contact point on a minimum of 12* cantors with a minimum dlamatar of ona (1) inch contact batwaan tha dock and tha Insulation. For bast results tha adhasiva should ba at least Vi" deep at tha contact points. 3.1.10 Application of the Koppars Insulation Base Tape (KSR) Koppars Insulation Base Tape shall bo applied over all of the top joints of tha Koppars Glass Fibar Insulation/Roof Base sheets including those at cants, flashings, fascia gravel stops, etc. Where two layers are used, tha middle layer must not ba stripped at tha joints. Whan applying tha Koppars Insulation Basa Tape, tha Koppars Steep Asphalt used to embed tha tape shall ba uniformly spread at tha pre scribed application rata and extend at least 1" on each side of the tape. Tha tape must ba pulled flat to avoid bucklee. fishmouths, ate., and thoroughly embedded in tha adhesive and surface coated at a rata of 25 lbs. par square. Tha tape shall ba centered on the joint and laid flat without attempt to maintain an exact cen terline by causing flshmoutha, buckles, etc. If the tape runs off from the centerIfne of the joint more than two inches, cut the tape, make an and lap and start a new run. End laps shall be a minimum of 2". Where adhesion voids in the taping'appli cation appear at the time of application or as water leaks before tha final roofing is applied a top glazing with Koppars Steep Asphalt will ba a satisfactory means of repair. Where tha Koppars Glass Fiber Insula tion substrate Is a monolithic poured re inforced Portland Cement Concrete, Koppars Bitumen may be substituted for Kop pars Steep Asphalt. 3.1.11 Application of Old Style Pitch or Koppers Bitumen and Aggregate Surface The final application of the Koppers Specification Roofing Is a triple weight application of Old Style Pitch or Koppers Bitumen, 75 lbs./aq., Into which Is dietributad an aggregate of slag or gravel. This aggregate acts as sn armor coat against mechanical forces, such as hall, and to deflect the intense radiation of the sun. The application of the Old Style Ptteh or Koppers Bitumen and aggregate must be done at the time the felta are applied: except In periods of hot dry weather when the top surfacing may be delayed over night When the specifier desires glaze coat ing and/or all work to be completed the 3.1.14 Tamnorary Roofing same working day, he shall be responsible Old Style Pitch Specifications to so state this requirement In his specifi cations. The aggregate surfacing must be ap plied into the top pouring while hot so that a uniform layer will be embedded and adhered. The completed Roof Aassm bty will have a uniform aggregate sor Temporary roofing appliad for various reasons shall not be considered a part of the permanent buitt-up roofing. Consult your Koppers representative for recom mended specifications over various type decks for temporary roof construction. ites. Depending on slag weights in cer tain parts of the country, 400 fee. of slog per equere may be required. Occasionally 3.1.18 Temporary Roofing KSR Specifications on well applied roofs, small black globes Where It is necessary to cover a build known ss "raspberries" or '`blackberries" ing so that tha Interior Is closed In or will form in the roof surface. These ate protected for construction work, the Kop- not detrimental to the roof. --a* gars Glees Fiber Insulation Roof Base 3.1.12 The Aggregate - '' stripped with Koppers Insulation Base Tape may be used for this purpose pro The aggregate to be used should meet viding the fallowing steps or precautions ASTM Specification 01803-64. The basic are taken: requirements for this aggregate are as 1. Upon completion of the installation follows: Sieve Size %' Vt' H* NO. 4 No. 8 Dust max., percent Moisture, max., % crushed stone and gravel crushed roofing slag Unit weight (loose). min. lb. per cu. ft Total Raising, rwibVTn 100 90-100 4-70 0-15 0-5 0.5 0.5 5.0 80 of the Koppers Fiber Glass Insulation/ Root Base and Koppers insulation Base Tape, the Insulation Base Tape shall be covered by a mopping of 25 Iba. per 100 sq. ft of Koppera adhesive which shall extend at least 2" on each side of the In sulation Base Tape. 2. The temporary roof surface shall be covered with plywood in work areas of other trades and shall be kept clean and free from construction debris. 3. Any accidental damage (leeks) shall be repaired Immediately. 4. Any leaks which develop due to in advertent application discrepancies shall ASTM 01803-64 covert other proper be repaired upon detection. Please note, ties, such as hardness and Includaa prop that occasional discrepancies of this type er methoda for sampling. If any doubt may be expected as the roof assembly la exists, the aggregate supplier should only partially completed. furnish a certified analysis and a cartificatton that tha product is produced to con form to ASTM 01863-64. Items 2 and 3 are the responsibility of the General Contractor and repairs shall be charged to the contracting party re 3.1.13 Cold Weather Application sponses for the damage. Minor repairs When rooting is applied at temperatures below 46'F. special precautions must be taken to Insure the satisfactory perform ance of the finished roof. Before applying roofing, tha affects of moisture, that Is all ics, snow, surface water, etc., must be removed from the deck. Any moisture present at the time the roofing is applied which It not burned off by the heat of the bitumen may result In poor adhesion of the materials and voids In the application. Hot applied bitumens tend to congeal rapidly In cold weather, even when the shall be made using Koppera Heavy Duty Glass Mesh or GLASFAB* installed In Koppera Steep Asphalt and coated with Koppera Steep Asphalt at rate of 25 lbs. per square. Where Koppera Glass Fiber Insulation/Roof Basa ia severely dam aged. they shall be removed and replactd. Do not use the Temporary Roof Pro cedure for periods exceeding (3) three months. Some water penetration can be expected and valuable Interior finish work or Interior installations should not be com pleted during this parted of time. deck Is dry, so extra care must be taken Before proceeding with the installation to set Insulation or roofing in as quickly of the Koppera falta. tha base which has as possible. been used as a temporary roof mutt be Do not heat bitumens above the maxi mum temperature limit listed above to thoroughly cleaned and allowed to dry. When temporary roofing it used, ail compensate for rapid chilling. Insulated openings and anda of Insulation applica containers, along with carefully timed material handling methods, must be em ployed. Whether hand mopping or me tion shall bo seeled to eliminate Ingress of water Into building. At parapet walls, Install cant In Koppera Steep Asphalt and chanical distribution equipment la used, cover with Koppera Insulation Base Tspe. lapsed time before contact of fatts or ag gregate with hot bitumen must be kept to carrying tape onto wall and insulation sur face. Coat surface with Koppers Stsep e minimum. In the case of hand mopping, Asphalt mop no farther than 5 feet In front of felt roll and Immediately roll In. Falta should Nets: TMs syaSeei cannot be employed be broomed or pressed in immediately. when a vapor banter is required. ^ 3.1.10 Koppers Steep Roofs For detailed specifications regarding steep, smooth surtscsd asbtstos roofs. consult your local Koppers representative or contact Koppers Co. in Pittsburgh. 3.2 INSULATION 3.2.1 Board Type Insulations (Old Style Pitch Systems) These insulations come In varying thicknesses and sizes. The provisions or manner of attachment which follows in the various specifications are suggestions, only. Should the manner of attachment as suggested, conflict with that specified by the individual insulation manufacture, the insulation manufacturers specifications shall be followed, and in addition, shall be in compliance with Koppers General Requirements. The roofing Insulation must be kept dry at all times. It must be of a type aprovad by Koppers for use with a Koppers built-up roof. It should only be applied over a deck complying with all of the General Requirements. Work must be scheduled to prevent damage from other trades and equipment. Roofing equipment must be of a type which will not damage the insulation used. Broken or demaged Insulation sheets can only be used when the undamaged portion is cut out for ap plication areas where fill-in pieces are re quired. ' If the deck slope Is one-half (Vi) inch per foot or more the insulation must be able to retain nails, or wood nailers must be installed perpendicular to the slope at each course of insulation. Provision for wood nailers in this fashion will provide both a surface for anchoring of roofing felts which shall be laid perpendicular to the wood nailers as well as an insulation stop. Spacing of nailers must be such that the insulation fits snugly with the nailers but must not be force fitted. No more insulation shall be laid at any one time than can be protected by pitch and felt in case of sudden wealther chang es. Edges of insulation shall be brought closely together and shall not be forced Into place. Where insulation joins vertical surfaces the insulation shall be cut in a neat manner allowing at least one-half (Vi) Inch clearance. Whan more than one (1) layer of insula tion is used, joints in each layer shall not coincide. All layers shall be parallel to preceding layers. 3 2-3- Vapor Barrier Vapor barriers are normally used where the heat flow direction and/or humidity within the building, during any climate or oc cupancy cycle, might cause the dew point or condensation to occur under the built- KOPPERS 7.1/Ko Architectural and Construction Materials up roofing within the insulation chamber. It is Important that the vapor barrier, when installed, provide a continuous seal, including ventilators, skylights, peripheral walls, and other terminations from the source of the water vapor. Ventilation provisions of the insulation chamber, when a vapor barrier Is used, are dic tated by the heat flow cycle and clima tology of the building. Generally a build ing with a preponderant heat flow-up cycle should; have an insulation chamber venti lated to the exterior. A building with a preponderant heat flow down cycle In humid area, should not be ventilated to the exterior If the dew point can be reached above the deck and In the insula tion chamber. Alternate vapor barrier systems to those described on the specification pages are as follows and offered for assistance and reference: s. Vinyl Type Fire resistant adhesive and vinyl-type vapor barrier as listed by and applied as specified by Underwriters' Laboratories, Inc., and Factory Mutual may be used. Adequate adhesion of the vapor barrier to the deck and adhesion of the Insula tion to the vapor barrier for securing the entire system against wind uplift and movement, must be attained. (See Section 3.3.4. Attachments page 10) Note: Whan Installing Insulstlon over vinyl-type vapor barrier apply approved adhesive over the approved vapor barrier In ribbons at the rate specified by U.L. and F.M. b. Kraft Type Fire retardant kraft lamination type va por barriers, applied with Steep Asphalt as listed by and applied as specified by Factory Mutual may be used. Adequate adhesion of vapor barrier to the deck and adhesion of insulation to the vapor bar rier for securing the entire system against wind uplift and movement, must be at tained. (See Section 3.3.4 Attachments page 10) Note: This system is rated for insurance purposee by Factory Mutual only. Cara must be exercised so that the va por barrier is not ruptured during installa tion. This is particularly true in areas over the flutes of the steel deck. 3A3 Water Stops (Temporary Protection) Water stops consisting of two (2) plies of tarred felt and moppings of Old Style Pitch for flat roofs or asphalt felt and asphalt for steep roofs extending onto the deck at least six (6) inches and four (4) inches on top of the insulation, shall be applied at the end of each day's work over exposed edges of insulation. Water stops shall be continuous and tight. In the KSR system, the Koppers Glass Fiber Insulation/Roof Base may be sealed off with a ply of Insulation Base Tape set in Koppers Steep Asphalt along the edge and covered with Koppers Steep Asphalt. These temporary protective measures must be removed cleanly when work is re sumed to prevent blocking moisture vapor movement to vented edge details. 3.4 Cut-offs (Permanent Installation) Venting of roof insulation at walls, curbs, eaves, etc., is recommended for all but a few special roof structures. There fore. cut-offs should not be installed at edges of insulation adjoining these areas for venting purposes. Cut-offs may be installed, however, pro vided they are constructed to run in one direction continuously to vented edges and provided no section of the roofing is Isolated or blocked from venting. 13 OTHER REQUIREMENTS 3.3.1 Materials Protection Roll roofing materials and insulation should be stored indoors if possible, oth erwise it shall be protected by raised plat forms and covered with suitable weather proof protective coverings such as tar paulins, plastic sheeting, etc. 3&2 Wood Nailing Strips All non-nallable decks require wood nailing strips at eaves, edges, walls, roof openings, etc. for proper securing of metal flanges. Nailers must be securely and firmly attached to the deck or through to its supporting members. Nailers shall extend not less than 1* beyond the apron or flange. Roofing felts for all decks having a slope of one-half (Vi) inch per foot or more must be back nailed and therefore non-nailable decks must be furnished with treated wood nailing strips. Wood nailers, installed on or in non-nailable decks for slopes one-half (V4) Inch per foot or more or when insulation is re quired of a non-nailable type, shall be run in the direction perpendicular to the direction in which the felts are to be laid. Nailers should be treated to preserve their condition and hence their nail re tentive power for the expected life of the roofing. Creosote or oil bom preservatives may affect the roofing they contact and should not be used. Nailers should be pressure treated with a water born pre servative such as Wolman salts or with penta applied in a liquified petroleum gas carrier such as the Cellon Process. 9 3.3.3. Cold Storage & Frwzsr Buildings Koppers will not bond its roofing ovsr these structures if Insulation, or Insulation and vaoor barriar is instailad ovar the deck and unlaas there is an adequately vanttlatad air spaca batwaan the dack and insulatad rafrigaratad araa. For procaduraa on non-bondad roofing applications, consult your local Koppara raprasantativa or Koppara Co. In Pitta* burgh. 3.3,4 Attachment Maximum adhesion or secure attach ment of all components In the roofing as sembly is necassary to satisfactory long term performance of the roofing mem brane. For proper adhesion of all roof components, Koppers suggests that the adhesive and fasteners, in the quantities specified by the manufacturer, be capable of passing a minimum uplift resistance of 30 pounds per square foot (pef). This up lift resistance translates into adequate lateral attachment of the buitt-uproofing system. When Building Code requirements dic tate a higher uplift resistance than our minimum requirement additional fasten ers or adhesive will be required over and above the quantities described in the en suing specifications. Solid mopping has been found to pro vide an uplift resistance in excess of 120 psf. Strip mopping, as suggested in the spe cifications in this manual, has been found to provide an uplift resistance in excess of SO psf. When nails or fasteners are used, they must be nailed through flat tin disks or have sufficiently large heads to prevent fracture or puncture through the roofing felts. The following are the namee of some manufacturers who provide nail and/or fastening devices for use wtth built-up roofing: E/S Products, Inc., New Rochelle. New York Simplex Nail & Manufacturing Corp,, Amerteus, Qa. Independent Nail Corp., Bridgewater, Mass. Wheeling Steel Corp., Wheeling, W. Va. E. G. Building Fastener Corp.. New York. N. Y. Koppers wilt not be responsible for any damage caused by or the result of unsatis factory attachment caused by expansion and contraction of the building. Building expansion joints should be installed: For furthar information contact your lo cal Koppara representative. 3.3J Base Sheet Alternate > r 1. On large roof areas at least 200 feet in each direction. 2. At all places where the structural - supports and roof assembly change ~ direction. Koppers Asphalt Coated Bade Sheet 3. Where type of adjoining deck mate- (ASTM 0-2426) may be substituted for the 7, . rials change. first ply (plies) of the Old Style Pitch Sye- tam roofing specification. It is not per- . "Where control, expansion, or contrac mined with the Koppers System Roof tion jdtnts are provided in structural steel, specifications. , deck material, or deck system, provisions When substituted for the first ply IR..B-' must be for continuation through the built- solid mop application specification it staff up-roofing 3Xftam. Koppers realizes that be embedded in a solid mopping of Kop in a climate controlled building there may pers Steep Asphalt followed by thorough be little or no expansion AFTER the build brooming to eliminate air pockets, wrin ing la In use, however, building expansion kles, fish mouths, buckles, etc. The f-J:. joints are still recommended based upon maining two (2) or three (3) plies shall be' the following points: solid mopping with Old Style Pitch in ac 1. During construction the building will cordance with the specification. not be under a steady state temper When substituted In a nailing applica ature/humidity condition so that tion specification it shall be used in lieu thermal and moisture movement can of the two nailed No. 15 tarred felts. be sufficient to fracture the roofing. When roeln sized or sheathing paper is a part of the original specification it shall remain and be applied beneath the Base Sheet Edge laps shall be four (4) inches and end laps shall be six (6) inches. The nailing pattern for the Base sheet shall be on nine (9) inch centers two (2) inches from the edge lap and down the center of each sheet on nine (9) inch can tors. (Note: This is approximately 100 nails.) When specifying the Base Sheet alter nate use the designation bs as a sub script to the specification number. For example when substituting base sheet in 2. If no building expansion joint is pro vided. the owner must keep the building at the steady state temper ature and humidity condition at all times as holiday shut-downs can fracture the roofing, due to the movement of system resulting from temperature/humidity variation. 3. If the occupancy is fairly large, the sudden entrance on a rainy day of many rain-soaked employees may cause moisture movement in the roof structure system which can fracture the roofing. a roofing specification over Metal Deckdesignate as 17 wibs. 3.3.7 Notice: TNe roofing specification manual con tains the latest and beet available Informa 3.3.8 Expansion Joints (Building) Sines all materials expand and contract due to temperature and/or moisture, the use, location, and design of building ex pansion joints, especially the roof struc ture system, should be taken Into con sideration at the time of original building design. Although provisions for adequate ex pansion joints are the responsibility of the building designer, Koppers offers the fol lowing recommendations for the protec tion of the roofing system against splits tion as derived from Koppers long experi ence in the roofing industry. The design criteria and details contained herein have been compiled and are offered as a guide for consideration to assist the architect, owner and rooter in an attempt to provide the beet root poaeibie for long, troublefree service. Responsibility, however, for design of any roofing system, remains with the architect or engineer and build ing owner. The nontents of this manual are subject to change at the dberstion of Koppers Company as future developments and experience are achieved. 10 KOPPERS 7.1/Ko Architectural end Construction Materials deck construction: '"'S Qraval Of Slot Embedded lit Pourlnfl o< Coal Tar Fltcti Altamata layer* of Coal Tar Pitch and Tarrad Pali 4.1 Wood Plank/ Plywood Mopping of Coal Tar Pitch Insulation Embedded In Coal T*r Pitch SLOPE * See Section 3.1.4, pg. 6 SURFACE e Aggregate Two Layer* Tarrad Pelt Natlad In Plata For raeommendatlons on wood and wood treatment, contact: Kopoers Company Inc.. Forest Products Division, Lumber Salas Dept.. 750 Koppers Bldg.. Pittsburgh. Pa. 15219 Spec. No. 1--5 ply Spec. No. 2--4 ply Spec. No. 1 wt---4 ply Spec. No. 2 wl--3 ply board type insulation Detail of Specification No. 1 wf Hot Cold Tar Pltcfl should never bo applied di rectly to a wood deck. Sandwiched between the heat from above end the heat from balow, such material finda ita way through the boards into the building. Good practice demands the cushioning and blotting effect of a layer of sheathing paper followed by layers of dry fait Shipiap and square edge boards should be avoided where possible. If the underside of the root deck is exposed to sir pressure created from open doors or wfndoors. tongueand-grooved lumber should be uaed. Spec. No. 1 wfv--4 ply Spec. No. 2 wiv--3 ply board type insulation and vapor barrier Treated wood should be used where a vapor barrier Is required, see Sec. 3.3.2. Page 9 ' PROCEDURE Select clauses as required. Optional clauses in italic. Copy m color denotes built-up roofing soecificanon Condition of Surface to Receive Roofing See Section 3.1.2, Page 6 Material Quantity Requirements See Section 3.1.7, Page 7 Preparation Below IneuietJon 1. The wood roof deck shall be cov ered with one (1) layer of approved rosin sized sheathing paper weighing approxi mately five (5) pounds per one hundred (100) square feet. The sheathing paper shall be lapped two (2) Inches and se cured to the deck by occasional nailing. 2. Two full thicknesses of Tarred Felt shall be laid over the entire surface, lap ping each sheet nineteen (19) inches over the preceding sheet and nailing the sheets In place. Application of Vapor Barrier Below Insulation Note: When vapor barrier is required, use these procedures in addition to Prep_ aration Below Insulation noted above. Lay over the entire surface two (2) full -x thicknesses of Koppers Approved Tarred Felt, lapping each sheet nineteen (19) in ches over the preceding sheet--mopping with Old Style Pitch the full nineteen (19) Inches so that In no place shall felt toueh felt. For other types of vapor barriers see Section 3.3.2, Page 9. Application of Insulation 1. Mop the entire surface with a uni form coating of Old Style Pitch into which, while hot. firmly embed the Insulation. When roofs have an incline of from two (2) inches to six (6) inches per foot use Steep Roofing Asphalt. For application of roofing materials over insulation follow Application of Roof ing Materials procedure in Section 4.2. Page 12. " Application of Roofing Materials Directly on Wood 1st. Lay one ply of rosin sized or other aeprovea sheathing paper weigning not less than five (5) lbs. per 100 square feet lapping each sheet two (21 inches and ran sufficiently to hold in piace. 2nd. Spec. No. 1 Spec. No. 2 Install two .'2) pues of tarred felts over enure surface lapped nineteen (191 inches. Nail on eight and one-naif (8'i) inoh centers one lit men `rom edge lap. 'Note: This is approximately '00 rails per 100 sq. 't.i Nail shames are to Pe of resuirea engtn for maximum .vitnrciding power. For Base Sheet alternate see Section 3.3.5. Page 10. 3rd. Spec. No. 1 Apply r.nree '3i ones ol Kopoers Aoprovea Tarred Felt aooing ones '.r/entytour anc two-mires T*2-: ncres Whe'e slope of neck is one-'-ail ncr- per 'oof or more, nail aacr. sheet of fe>f six 5) re res trom me pack edge ol :wer.tv-tour '24; men centers. AH `aps snail pe ~,ccoed ,vith oitcn the <u,l twenty-tour anc -wpthi'ds I24t'i) inches, so that in no Place snail ten touch `elt. 3rd. Spec. No. 2 Apply two `2/ pnes d Kccoers Ap proved Tarred Felt, lapping olies nineteen 119) inches. Where slope ot deck -s o-enait l"t . inch per toot or more, nan eac.r sheet six 'r$i inches trom the sack edge on iv/erty-lour (24) inch centers. Alt ass snail be mopped with pilcn the hull nine teen 119) inches so that in no place snail leit touch leit. 4th. Pour over the entire surface of the roofing memDrane a uniform coapng c' Old Style Pitcn into wnich. while rot embed not less than four hundred -400' pounds of gravel or three nunoreo ,3001 pounds of siag for each one nuncred (1001 sauare feet. General Requirement* on pages 6 through 10 and Detailed Specifications on pages 24 through 29 are e part of this specification and muat be adhered to whore appHcabio. 11 deck construction: 4.2 Poured Portland Cement Concrete SLOPE See Section 3.1.4, pg. 6 SURFACE Aggregate Spec. No. 5--4 piy Spec. No. 7--3 pty Spec. No. 5 wt--4 ply Spec. No. 7 wi--3 pty board type insulation Spec. No. 5 wiv--4 piy Spec. No. 7 wiv--3 ply board type insulation and vapor barrier Qravaf or Slag Embedded In Pouring of Coal Tar alien Alternate Layara of Coal Tar Mtcn and Tarred Pelt Mopping of Coal Tar riftcn IneuMfon Embedded In Coel Tar Pitcn Two layer* of Coal Tar attefi and Tarrad Fait* Detail of Specification No. 5 eft Poured concrete deck* aomatimea eauae trouble becauee trie built-up roofing ia laid befor* the deck i* thoroughly dry--auch a* might happen when the general contractor la anxloua to get th* building under cover and ao urge* the roofing contractor to begin work thorny after the deck hat been poured. When thla happen* th* raeult ia a bllatared and buckled membrane or, jutt a* aarioue, inau- latton curt* and makaa an uneabafactory job. Th* roofing contractor, backed by the archi tect. ahould Insist on a thoroughly dry deck before beginning work. He should alto tea to It that the deck la fra* of loots sand, frozen seal* and othsr fortign msttar. Projection* ahould be removed, low points filled with cement grout or other suitable material, and all cracks polntad up. =OCEDUP.E Select clauses as required. Optional clauses in italic. Zrz. - zz :s":'ss ex- t-uo g Condition of Surface to Recefv* Roofing See Section 3.1.2, Page 0 Material Quantity Requirements See Section 3.1.7, Pag* 7 Application of Vapor Barrier Batoer Insulation 1. Apply a uniform coating of Old Style Pitch to tho deck. 2. Lay over the entire surface two (2) full thicknesses of Koppers Approved Tarrad Fait, lapping each shaet ninataen (IS) Inches over the preceding sheet-- mopping with Old Style Pitch the full nineteen (19) Inches so that In no ptaoe - shall left touch fait - 3. Extend all plies of felt ufr vertical surfacas and cut off at height of insula tion. For other types of vapor barriers see Section 3.24. Pag* 9 of InWJfBttOffl Apply a uniform coating of Old Style Pitch over th* entire surface into which, while hot embed th* insulation. If there ara two (2) layers of insulation mop th* entir* surface of th# first layer with Cld Style Pitch into which, while hot embed th* second layer of insulation. Application of Roofing Materials 1st. Mop oecx op .rsu anon--as as ? .caoiei dorrpiete'y .vith C-d S:ve =000 2nd. Spec. No. 5 icc-y ever the ant,re surface, lour c es :! Keepers -orrevaa Ta'rep Fe: .aop:ng puss .'wen:/-seven ar.a one-nail .27':; nches. Vfco sotrOn Patween- eacr ' 27': rsr. ,ao #ttn 0,3 Sty:e P-tcr sc that ift nc place sr.ail touch ten. 2nd. Spec. No 7 Zccy z.er --a e^'ire su-`a:a :."?? 3 : es o> 'zzee's -corovec Tar.-sc .-a; szc-g pi,as :.ve'>'y-`e_,r j~z 'v/c-"~,rzs 2-'-.: nz-es Vfco so.sy Patfiean non 2--'. "d- := Z z S', a -: --a: *r p.iza sna l ten -ouc~, `e-> Zz- bass sheet a-ter-ate see iezzzo 2.5 =3oe 'Q .`.`s'e slope of decx Is one-naif o- oer `oo: or .-rc-e a-d cecx oerr :s ~a ~z -a. a on: -ao< or -oo-' esga o' eacr =r.-5'. 0" :.\er;r`z^r na 'on 0c":eps. .'..ne'e oacx ooes -o: oa-- : -a...-g -a img str os are raau.reo a~d eao- s-ee: -3:'e0 a-c.ng oacx op -coer ecce a; toocrgs :o assure oer.etrat.on of -3::e's. 3rd. 3ojr o.er -re ern-e su-'aoe o' -'e 'ssr-r.g rer'sra-e a .r.oia ooa: *o z` C.l 3%!e "itc.n r.:o -voter w-- e "o' e--oeo *0! ess :-an *Our hundred sounds c< grave! or 'nree huncreo pounds or s:ag tor eacn ore --no eo 'CO: souam feet. - General Requirement* on pages 8 through 10 aed Detailed SpecMcationa on page* 24 Magk 29 are a part of thto paeHcMoa and must be adhered to wtiwt ipploibli. 12 KOPPERS 7.1/Ko Architectural and Construction Matenat* deck construction: -\ 4.3 Pracast Structural Concrete Sections SLOPE See Section 3.1.4, pg. 6 SURFACE e Aggregate Spec. No. 10--4 pty Spec. No. 11--3 ply Spec. No. 10 wf--4 ply Spec. No. 11 wi--3 ply board type Insulation Spec. No. 10 wiv--4 ply Spec. No. 11 wiv--3 ply board type insulation and vapor barrier Precest concrete structural tactions demsnd the jams recommendetione as poured concrata dacka, although ma praaanea of mois ture. dua to insufficient drying tints, is not likely. If tha contractor finds ona or more slaOs ratting unavanly, with tdgsa protecting above tha surface, this should be corrected by retatting or leveling off. Low areas should PROCEDURE Select clauses as required. Optional clausas in italic. Cosy m co-or denotes built-up roofing specification Condition of Surface to Receive Rooting See Section 3.1.2, Page 6 Material Quantity Requirements See Section 3.1.7, Page 7 Application of Vapor Barrier Below in sulation 1. On precast 'concrete slab or tile deck, strip mop with Old Style Pitch up to four (4) inches from the edge of each joint. Not less than 30% of the surface must be mopped, at a min. rata of 10 lbs. per 100 square feet 2. Lay over the entire surface two (2) full thicknesses of Koppers Approved Tarred Pelt, lapping each sheet nineteen (19) inches over the preceding sheet mopping with Old Style Pitch the full nineteen (19) Inches so that in no place shall felt touch felt. 3. Extend all plies of felt up vertical surfaces and cut off at height of insula tion. For other types of vapor barriers see Section 3.2.2. Page 9 Application of Insulation: Over Vapor Barrier. Apply a uniform coating of Old Style Pitch over the entire surface Into which, while hot embed the not be filled with open-cell aggregate for it traps air and moisture, causing It to expand and crack whan covered and badly buttering a built-uo roofing surtacs. All joints, grouted or not, should be caulked with trowel-grade asphaltic plastic cement Slab sides and ends should be square, rest firmly and evenly on supporting members, and be installed to pre vent lateral and vertical movement insulation. If there are two (2) layers of Insulation (e.g. as required for pre stressed concrete sections) mop the en tire surface of the first layer with Old Style Pitch into which, while hot, embed the second layer of Insulation. Over Deck. On precast concrete slab or tile deck, strip mop with Old Style Pitch up to four (4) inches from the edge of each joint. Not less than 30% of the surface must be mopped, at a minimum of 10 lbs. par 100 square feet. While hot, embed the insulation. If there are two (2) layers of Insulation (e.g. as required for pre-stressed concrete sections) mop the entire surface of the first layer with Old Style Pitch into which, while hot, embed the second layer of insulation. Per apcication of roc'ing mate-ais ove- :-s. at'C" follow Application o` ^oc'irg Materials procedure ir Section - 2. Page 12. Application of Roofing Materials 1st. Each s'ao snail be spot or strip mopped with Old Stvle Pitch, keeping p'tcn ntccpi.hgs cacK at least lour inches from ail edges of eacn siao iom: Not less than 30o of the surface must oe rnoooec. When applying over insuia on. .--op insulation completely with Old Sf.le c*tcn 2nd. Spec. No. 10 Apc.v over the entire surface lour '41 c as of Kcppers Approved Tarred Pelt. acp-rg o,ies twanty-se-.en arc a'-e-na ' iZT'tt ~cnas. '.top so ev Pi'A-een sac27`. ~;r. ap r.:r- Od Sr.-e 3-j- so --a: r -o p ace sna i 'e't 'ouc~ -a-.t 2nd. Spec. No. 11 Arc v ova- --a e-'-s s-'-ace - ae <2.. c.ias r' Kcppers -Arr".er 7--'-jo -a 'arc"? c-es we.-irv-'c^r ar.p `.vr-t--'cs '22*1/ -c.-es. '.`cc s: c , Crt.vee~ "*e 2<1j-inon .ac Aim J: a - ;c" sc mat "> -o P'ace sna.'/ `ad touch `a1' re- case s'-eet aite'-ats see Sect c2 2 5. Page 10. '.',~ere s.'cce c< see' s ''e-ra` : men per (cot or --ore s-a c=:n re.-- ha- -g -a.i =-png ca:< cr jrper c-cre o` each sneet a -a ur c` `our -'2-ti itch rente's. W-ere esc- c:es not se--it -a:1-g. ~= - rs sea' re installed ahd eacn s-se: "a- ec "a p-g back or upper edge at scac-ngs :c assu-e oenetration cf nare's. ' 3rd. Pour eve' t'e er: re surface c tne 'ccf:hg memc'a''e a .*> ;c -- :ca- -g cf O'd Stye ai:ch .rto .'re-' .\-'e net emcee no: ess '"an 'our --..nurse c;0 rounds of grave1 o- ---ee nvo-es 2C2pounds cf siag for eacn ore ou.-cred 100) souare 'eet. Qsnare! Requirements on pages 8 through 10 and Detailed Specification* on pagaa 24 through 29 ara a pert of thie pecrtteaSon and must be adhered to where t^picsbla. 13 deck construction: 4.4 Poured Gypsum (Precast Gypsum) Lightweight Insulating Concrete SLOPE See Section 3.1.4, pg. 6 SURFACE Aggregate Spec. No. 12--5 pty Spec. No. 13--4 ply Spec. No. 12 wf--4 ply Spec. No. 13 wi--3 ply board type insulation Spec. No. 12 wfv--4 ply Spec. No. 13 wiv--3 ply board type insulation and vapor barrier See Page 6 for Lightweight Insulating Decks Section 3.1.3 Thermosetting Asphaltic Concrete: Base sheet must be used ae first ply-- see Section 3.3.5, page 10. Use application procedures ss described in Section 4.2, peg# 12. PROCEDURE Select clauses as required. Option*! clauses in italic. ' Cody m color denotes built-up roofing specification Condition of Surface to Receive Roofing See Section 3.1.2, Page 6 Material Quantity Requirement! See Section 3.1.7, Page 7 Application at Membrane Below in sulation 1. Apply over entire surface ona (1) ply o/ Koppers coated base sheet, lapping each sheet tour 14) inches over preceding sheet and neiling et lap no lets than nine (9) inches, end down center of each sheet on nine (9) Inch centers. 2. Extand plias up vertical surfacaa and cut off at height of insulation. For vapor provisions contact your local Koppars Representative. Application ot Insulation Over Membrane (or Deck) Apply a uniform coating of Old Style Pitch over the entire surface into which, while hot. embed the insulation, if there are two (2) layers of insulation mop the entire surfece of the first layer with Old Style Pitch into which, while hot. embed The tame recominandationa applying to pre cast eoncrate slabs apply to precast gypsum tlaba and gypsum maial bound planks. AH uneven slabs should be raaet or leveled off so that the root will be laid on a flat and even surface, free from projections and low areas. Because these slabs are precast, the possibility of a high moisture content being present Is more remote than in the poured gyptum deck. Poured gypsum decks sometimes cause trou ble because the built-up roofing is laid before the deck is thoroughly dry--such as might happen whan tha general contractor is anx-' ious to get the building under cover and so urgas the roofing contractor to bagin work shortly alter the deck haa been pourad. Whan thia happens the result is a blistered and buckled mambrance or, just as serious. In sulation curia and make* an unsatisfactory job. The roofing contractor, backed by the architect, should insist on a thoroughly dry deck before beginning work. He should also tee to it that the deck la free of loose sand, frozen scale and other foreign matter. Projec tions should be removed, low points tilled witn cement grout or other suitable material, and all cracks pointed up. the second layer of insulation. For application of roofing materials over insulation follow Application of Roof ing Materials procedure ir. Section 4.2. Page 12. Application of Roofing Materials to Deck 1st Install two (2) plies of tarred felt over entire surface lapped nineteen (19) inches with approved nails. Nail on eight and one-half (8'/j) centers one (1) inch from edge lap. (Note: This is approximate ly 100 nails per 100 sq. ft.). Where lightweight insulating concrete cannot be nailed, apply the first ply of felt with spot or stripmoppmg using not less than 10 lbs. per square of pitch and on not less than 8" centers. Alternate: Apply over entire surlace one (1) piy ot Koppers coated base sheet, lapping each sneet lour 141 inches over preceding sheet and naiiing at lap no less man nine 19) mcnes. and down cen ter ot each sheer . on nine (9) men centers. 2nd. Spec. No. 12 Apply three 13) phes of Koppers Ap proved Tarred Feit. lapping plies twentytour and two-thirds (24 tij inches. Where slope ot deck is one-halt Pi) inch per foot or more, nail each sheet ot tell six (6) mcnes from the oacx edge cn twentyfour (24) inch centers. All laps sh3il be Topped with pitch the lull twenty-four and two-thirds '24**i) mcnes. so mat m no place shall felt touch felt. 2nd. Spec. No. 13 Apply two 12} plies oi Koppers Ap proved Tarred Felt, .eppmg piles nineteen (19) mcnes. Where s:ope cl deck 'S onehalt P'i) inch per loot or more, nail sacn sheet six (61 inches from the back edge on twenty-tour (24) inch centers. All laps shall be mopped with pitch the lull nine teen !19) inches so mat m no p ace srall teit touch feit. 3rd. Pour over the enure surface if tr.e roofing membrane a uniform coating of Old Style Pitch into which, wmle not. embed not less than four hundrdo (400! pounds of gravel or tnree hundred (300> pounds of slag for each one hundred (100) square teet. Note: For application of roofing systems to Dyeon concrata, sse specifica tion: Noe. 50, 10 and 70 pi^es 15, IS and 20 reepecthreiy. General Requirements on pages 5 through 10 and Detailed Specifiesdone on pages 24 through 29 are a part of this specification and must be adhend`*lo where applesMe. 14 Ortval of Sltg EmbtdMd in Paurin* at Cotl Tor Wteh Altamati layar* or Coot Tor Pitch ted Torrid Poll Mopping of Cool Tor Pitch Inoulotlon Adhond to Vopor Bomor Vopor Bomor MomOrono Adhirod to Dock KOPPERS 7.1/Ko Architectural and Construction Material* deck construction: 4.5 Metai Decks (Insulation Required) SLOPE a See Section 3.1.4, pg. 6 SURFACE a Aggregate Spec.. No. 17 wf--4 ply Spec. No. 18 wi--3 ply board type insulation Detail of Specification No. 17vHv It lo absolutely naeatoary to install insulation on a matal dock bafora tha built-up roofing ia applied. A matal dock must ba darn, smooth, and proparty anehorad to tha staal purlins and all joints comedy iappad and fastsnad. Typo of matal dack, fiuta opaning and vari ous othar factors datarmlna tha typa and thfeknaas of insulation raquirad. Consult your Koppara raprasantatlva for racommsndadons. Matal root daeka shall ba dasignad so that thay will not hava a daflsction axcaading 1/240 of claar span undar all typaa of loads (llva A daad). Oasignar should taka into ac count roof traffic conditions induding me chanical equipment used for root application. Spac. No. 17 wlv---4 ply Spec. No. 18 wlv--3 ply board type insulation and vapor barriar Saa Pag* 6 for Lightweight Insulating Oacka--Section 3.1.3. PROCEDURE Select clauses as required. Optional clausas in italic. . Copy m color denotes built-up rooting specification Condition of Surface to Receive Roofing See Section 3.1.2, Pago 6 Material Quantity Requirements Sae Saction 3.1.7, Pago 7 Application of Vapor Barrier Below In sulation A. Pelt Typo Coat the nba of the metal deck with Steep Asphalt and then install two (2) full thicknessas of Koppara No. 15 Asphalt Pelt, lapping each shaet nineteen (19) inches over the preceding sheet mopping with Steep Asphalt the full width of the nineteen (19) inch lap. Extend ail fait up vertical surfaces and cutoff at height of Insulation. Por othar typaa of vapor barriera see Section 3^2, Page 9 Application of Insulation and Roofing Materials 1st a. Install iniulation in steep asphalt applied to deck at rate of 12 to 15 lbs. per 100 sq. ft. and place insulation while steep asphalt is still molten to provide good adhesion. See Attachment Section 3.3.4, Page 10 b. If slope of deck is one-half (Mr) inch per foot or more, insulation must be able to retain nails and, in addition to being set in steep asphalt, insulation must be fastened to the metal deck with ap proved mechanical fastaners placed at all four (4) comars and tha centar oI each shaet If two layers of insulation are spe cified. top layer joints shall not coiocida with joints of bottom layer. Fasteners shall be driven after the top layer of insulation is Installed. c. If U.L. and P.M. requirements are a factor for insurance rating, insulation must ba listed and approved in accordance with thair current data. 2nd. Mop a uniform coating of Old Style Pitch over the insulation preceding the application of roofing membrane. 3rd. Spec. No. 17 wi Apply over the entire surface, four I*) plies of Koppers Approved Tarred Felt, lapping plies twenty-seven and one-half !27''t) inches. Mop solidly between each 27'vi inch lap with Old Style Pitch so that m no place shall teit touch felt. 3rd. Spec. No. 18 wi Acpiv over the entire surface, three (31 plies ol Koppers Approved Tarred -s 'l. lapping ones twenty-tour and two-tnirds I24Vji nches. Moo solidly between eacn 241j men lap with Old Style Pucn so that in no place shall teit touch ten. If slope of roof is one-half I'-jt ireh per foot or more, each piy o' `eit shall be nailed along the back or upper eoge cn twenty-four (24) inch centers. If case sheet alternate is used, eacn ply of base sheet shall be nailed two (2) inches from the back or upper edge on twenty-'our (24) mch centers. 4th. Pour over the entire surface of !he roofing membrane a uniform coating of Old Style Pitch into which, while not. embed not less than four nundred <400) pounds of gravel or three hundred 13001 pounds of stag for each one nundred (100) square feet. Por base sheet alternate see Section 3.3.5. Page 10 General Requirements on page* 5 through 10 and Detailed Specification* on pages 24 through 29 are a part of this specification and must be adhered to where appHeable. 15 deck construction: Poured Concrete * Poured Gypsum * Precast Concrete 4.6 Water Cooled Roofs Water Retaining Roofs SLOPE See Section 3.1.4, pg. 6 SURFACE * Double Aggregate (with double pour) Spec. No. 23--4 ply--on deck Spec. No. 24--3 ply--on deck Spec. No. 23 wi--4 pty Spec. No. 24 wt--3 ply board type insulation Spec. No. 23 wiv--4 ply Spec. No. 24 wiv--3 ply board type insulation and vapor barrier - NOTE: The bass sheet alternate Section 3.3.5 shall not be used. Two Layare of 3rev* or Slog Embaddad in two (J) Pouring* of Co* Ttr Htcfi Attamat* Imh of Co* Tr Pitcri (rid Ttnod Fan Mopping of Co* Tar Flteti Poured Concren, Qypaum or Preeaat Concrew SUP Pack DetaP of Specification No. 23 Water Copied Hoof Water la designed to be contained on the roof at all tlmee at a constant lav* by means of a drainage system and a water source. (See note on cold weather conditions.) Water Cooled Roofs also include spray pond roofs where the roof it constantly sorayed with water but not necessarily kept at a constant lav*. Water Cooled Roofs should be applied over poured concrete, gypsum or precast concrete decks. It la mandatory that the water coding sys tem be dosed down and the roof drsirred prior to cold weather. N*ther roofing nor the structure will withstand the expansion caused by lee formation. Wat* RetaMng Roots Process Water Water from manufacturing process, cooling towers, etc., that regularly deliver water across the roof for norm* drainage. Retarded Or*nets Ponding Drain* ira sired to deliver a controlled amount of water to the storm system and thus regularly necessitate heavy water ponding. PROCEDURE Select clauses as required. Optionel clauses in italic. Cooy .n ooior denotes built-up 'oofing soec:`ica;.on Condition of Surface to Recehrs Roofing See Section 3.1.2, Page 6 Mated* Quantity Reqirifentente See Section 3.1.7, Page 7 Application of Built-up Roofing 1st. Mod aeck completely with Old Sty e Pitch 2nd. Spec. No. 23 Aoply over the entire surface tour (4) ones ol Koppers Approved Tarred Felt, lapping plies twenty-seven and one-hall 2T i meres. Moo solidly between each 27'3 men iao witn Old Style Pitch so that ,n -o o-ace sr.au telt touch felt. 2nd. Spec. No. 24 Acoty ever the entire surface three (31 pues ol Koppers Approved Tarred Pelt, lacomg plies twenty-tour and two-thirds 1241-ji meres. Mop soudly Petween each (24!3. ,nc* ,ao Witn Old Style Pitch so mat m ~o o-ace snail >ett touch telt. Ail teit snail se turned up not less than `cur is, 'nenes at vertical surfaces. 3rd. Pour over the entire surface of the roofirg membrane a uniform coating of Co Stvie Pitch mto whicn. wnile hot. emsed not less than four hundred ,400! pcuncs o' gravel or three hundred i300i pounds of slag* for eacn one hundred (100) square feet. If slope of roof is one-half ('-i) inen per foot or more, each ply of felt shall be nalied along the back or upper edge on twenty-four (24, inch centers. 4th. All loose gravel or slag shall be swept from surface and a second uniform pouring of approximately eighty-five (85) pounds of Old Style Pitch shall be applied over the gravel or stag, into wnich. while hot. shall be applied a second layer of three hundred (300) pounds of gravel or two hundred (200) pounds of slag for each 100 square feet. The entire surface shall then be thoroughly broomed free ... fronFWli loee#-gr*Y*i or slag. It is advia' able to roll the finisned surface with a light roller so that aggregate is thoroughly embedded. Note: a. At pofnta wham water pressure from the apray may be excessive, the roof sur face should be protected with treated board platform* or other suitable con struction to break th* fore* of the water. These platforms should be laid on top of th* roof surface and not fastened to the deck. b. Insulation under a Water Cooled Roof should be of a type which la rigid, dimensionally stable with high compres sive strength and of a sealed c*lular structure sueh a* Foamglas.9 c. At *1 points where roofing mem brane meets a vertical surface the flash ing specifications used shall be as fol lows: Water Cooled Roofs--Koppers Flashing Specification No. 110 only shall be used. See Pg. 25. Water Retaining Roof*--Either Koppers Flashing Specifications No. 108 or No. 110 shall be used. See pg. 25. d. Insulation and vapor barrier, if used, shall be applied according to procedures found in basic specifications 5 & 7 (Pg. 12). 10 4 11 (Pg. 13). 12 & 13 (Pg. 14). a. Specifications 23 and 24 may be applied over wood deck (Pg. 11) or metal decks (Pg. 15) only if used as Water Retaining Roofs. Insulation and vapor barrier, if used shall be applied according to procedures found with these specifi cation!. (. Roof Structure design live loads for specification* 23 and 24 shall be a mini mum of 50 pel and deflection shall not axcaed 1/380 of th* span, both in addition to the anticipated weight of the water. Insulation joints must be taped. Vapor barriers mutt b* two pty. solid mopped. Us* steep asphalt over metal decks. Wood must be treated to prevent warping (aa* Section 3.3.2 Peg* 9). through?0 a^'oobSed'sp^lioattons on page* 24 through 21 as part of th* MJacfflcedon and mu* be adhered to 18 KOPPERS 7.1 /Ko Architectural and Construction Matsnai* deck construction: 4.7 Weed Fiber SLOPE * See Section 3.1.4, pg. 6 SURFACE Aggregate Spec. No. 27--4 piy Spec. No. 28--3 piy . Spec. No. 27 wi--4 ply Spec. No. 28 wi--3 ply beard type insulation Spec. No. 27 wiv--4 ply Spec. No. 28 wiv--3 piy board type insulation and vapor barrlor All decking mutt be Installed In strict accordnet with the particular deck manufectursr'e recommendationa for Installation. Deck mate rial must bo protected during shipment job site storage and prior to roofing application. No planks which have become structurally weakened due to moisture, fractures or muti lated edges may be used. All joints must be level and preferably grouted full and level with plank surfaces as recommended by the deck manufacturer. All planks must be well anchored to supporting member* to reslat movement in a fashion recommended by the deck manufacturer. Any planks which bow or deflect or do not seat securely must be re placed. Responsibility for the selection of a particular type of wood fiber dack, its instal lation. provision for expansion and contrac tion its suitability to job requirements, and Its ability to support anticipated loads in its environment rests with the designer and deck manufacturer. r PROCEDURE Select clauses as required. Option*1 clause* in italic. Cosy >n color denotes built-up roofing specification Condition of Surface to Receive Roofing See Section 3.1.2, Page 8 Material Quantity Requirement* See Section 3.1.7, Page 7 Application of Roofing Materials . 1st. install one (l! oly of Koppers asona't coated Case sheet over entire sur face -n solid mopping of Type HI Steep Aspnait so that base sheet snail not touen sur'ace. Firmly broom or press entire sur`ace of base sr.eet into hot steep asohalt so that no air pockets, wrinkles, buckles or kinks shall occur. Minimum side laps shall :e four (4) inches and minimum end aos shall oe six f6) Inches. All laps shall oe continuously sealed the full width of the lap. ALTERNATE: As an aberrate to mop ping 'ay one II) ply oI rosm-sized sreatng paper lapped two !2< incites minimum and nail to noId in place. Then lay one 'll piy ot Kcooers coated base sheet /- iaopec not less than tour 141 inches anc . nsu along center of lap not 'ess than nine ' -91 inches on center ano tnru the canter ol each sheet on nine 19) inch centers with mechanical clinching type fasteners as recommended by the Structural Hood fiber Products Association or oy the designer, such as Simplex Tube-Lok7-1 nails. For bonded roc'ing applicators iast erers. other than Tube-Lok tails, must oe acceptable to Keepers. Fastercs sna': oe applied at the minimum rats cl one ft/ per square loot as recommenced ov the Structural Hood FiOei- Products Asso ciation. 2nd. Spec. No. 27 Apply three <3) plies ol Koppers Ap proved Tarred felt lapping plies twentylour and two-thirds (24^) inches. Where slope ol deck is one-hall I'd inch per loot or more, nail each sheet ol lelt six (6) inches trom the back edge on twentylour (24) inch centers. All laps shall be mopped with pitch the lull iwenty-lour and two-thirds (24*i) mcnes. so that in no place shall ten touch le't. 2nd. Spec. No. 28 Apply two (2/ plies cl Koppers Ap proved Tarred Fen. lapping plies nine teen (19) inches. Where slope ot deck is one-hall (,/2) inch per loot or more, nail each sheet six (6) inches from the back edge on twenty-'our (24) inch centers. All laps shall be mopped with pitch the lull nineteen It9i inches so that in no place shall ten touch ten. 3rd. pour p-.er tne entne surface of the roofing rnemcrane 3 uniform coating of C d Style itcn into *> ch w-- e n;t emoed not 'ess than `our "u-'d-ec -ZC pounds of grave: or three nu.-c-ec 3CC. pounds of slag for each one *jrcrec HCOl scuare feet. Insulation and Vapor Barrier 1. Insulation without vapor barrier. In stall insulation in Type III steep asphalt in conformance with 1st paragraph. Nail able insulation not exceeding one (1) inch thick may be installed using IV. Inch Simplex Tube-Lok nails at all four corners and at center of board. Installation of roofing over insulation shall be as per specification outlined above with base sheet mopped solidly to the insulation in steep asphalt 2. Insulation with vapor barrier. Install two (2) plies of No. 15 asphalt felt lapped nineteen (19) inches in Type III steep asphalt as par 1st paragraph of this spe cification. 8oth piles shall be mopped solidly so that in no place shall felt touch fslt Install Insulation in solid mopping of stssp asphalt. Roofing ovar insulation is to be in sccordanca with the details of the specification above with base sheet mopped solidly to the insulation. General Requirements on pages 8 through 10 and Detailed Specification* on pages 24 through 28 aro a part of this spsollloatlon and must be adhered to whore appfaotoio. 17 deck construction: Dycon Concrete Substrate: 4.8 Steel Centering SLOPE See Section 3.1.4, pg. 6 SURFACE Aggregate Spec. No. 50--5 ply Spec. No. 51--4 ply first two plies nailed -- remaining plies solid mopped Spec. No. 50 wi--4 ply Spec. No. 51--3 ply board type Insulation applied over DYCON Concrete Spec. No. 50 bs--4 ply Spec. No. 51 bs--3 ply base sheet as 1st ply of roofing system For roofing procedures for Dycon Con crete over other types of metal decks, see your Koppers Sales Representative. PROCEDURE Select clauses as required. Optional clauses in italic. . Ccov in coior denotes built-up roofing soecilication > Conditions of Surface to Receive Roofing All surfaces must be dry, reasonably smooth, clean, rigid and free from debris, loose materials, projections and holas which might causa rupture of the mem brane. When to Apply Roofing Material to Dycon Concrete 1. After placement allow a minimum of 36 hours prior to application of roofing materials for initial three (3) inch (nomi nal) thickness of Dycon Concrete. 2. For average thickness of over three (3) inches, allow an additional 24 houis prior to application of roofing materials. 3. When rain occurs within 24 hours prior to application of roofing materials, allow a minimum 24 hours of good dry ing weather after cessation of rain. Material Quantity Requirements See Section 3.1.7, pg. 7. Application of Insulation Over Dycon Concrete Apply a uniform coating of Old Style Pitch over the entire surface into which, while hot embed the Insulation. If there are two (2) layers of insulation mop the Qrtvsl or Slag Emoadded In Pouring of Coal Tar Pltefl Altamata Layers or Coal Tar Plteft and Tarred Pan Two Layers of Tarred Fait Nallad In Place Dyeone Concrete ovar Steel Cantering Detail of Specification No. 50 APPROVED NAILS AND NAIUNO CHART Nail Holding Power in Dycon Concrete at age 10 days. Average force to withdraw fastener, in pounds. E.S. Mark IIITM Fastener, (1tt)-100 Simplex Tube-LokTM, (1%*)--60 E.G. Insufdeck Loc-NailTM, (1%')-50 Capped ES/Nail*, (1tt')-30 (Note: When Capped ES/Nail is used. Increase fastener quantity to minimum of 125 fasteners per square.) entire surface of the first layer with Old Style Pitch into which, while hot embed the second layer of insulation. For application of roofing materials over insulation that has been applied to surface of Dycon Concrete, follow Appli cation of Roofing Materials procedure in Section 4.2, pg. 12. Application of Roofing Materials to Dycon Concrete 1st. Applicstlon of First Ply (Plies). A. For Saturstad Felts. Install two 12/ plies of tarred felts over entire surface lapped nineteen (19) inches. Nail on eight and one-hall (8Vi) inch cen ters one (1) inch from edge lap. (Note: This is approximately 100 nails per 100 sq. ft.) Approved nails shall be used as noted on APPROVED NAIL and NAILING CHART --this page. B. Koppers Asphalt Base Sheet Install one (1) ply of Koppers asphalt coated base sheet over entire surface lapped four (4) inches. Nail on nine (9) inch centers two (2) inches from edge lap and down center of each sheet on nine (9) inch centers. (Note: This is approxi mately 100 nails per 100 sq. ft.) Approved nails snail be used as noted on APPROVED NAIL and NAILING CHART --this page. 2nd. Spec. No. 50 Apply three (3) plies of Koppers Ap proved Tarred Felt, lapping plies twentyfour and two-thirds (24%) inches. Where slope ot deck is one-halt (%) inch per toot or more, nail each sheet of felt six (6i inches from the back edge on twentyfour (24) inch centers. All laps shall be mopped with pitch the full twenty-four and two-thirds (24%) inches, so that in no place shall felt touch ten. 2nd. Spec. No. 51 Apply two (2) plies ot Koppers Ap proved Tarred Felt, lapping plies nineteen (19) inches. Where slope of deck is onehalf (Vi) inch per loot or more, nail each sheet six (6) inches from the back edge on twenty-four (24) inch centers. All laps shall be mopped with pitch the lull nine teen (19) inches so that in no place shall leit touch felt. 3rd. Pour over the entire surface of the roofing membrane a uniform coating of Old Style Pitch into which, while hot. embed not less than four hundred (400) pounds of gravel or three hunored (300) pounds of slag for each one hundred (100) square feet. General Requirements' on pages 6 through 10 and Detailed Specifications on pages 24 fraugh 20 ate a part of thia specification and must ba adhered knew) m^nshaawst^ai -- "\ ' IS rs Clrv*t or Sloe EmOoOOod In Pouring of Cool Tor Pitch Altomoto Layer* ot Coal Tar Pitch and Tamd Fait Two Layer* ot Tarred Felt Nailed in Place Dyeon* Concrete over Structural Concrete (Precast or Monotlthlcally Poured) Detail of Specification No. 60 (Note: It aoae* be tween pracaat unit* la auch that a algniflcant amount o1 Dyeon* Concrete rune through, place a piece of Kraft paoer wide enough to Bridge gap* ahead of pour... or almllar oyctem.) KOPPERS 7.1/Ko Architectural and Construction Mstenals deck construction: Dycon Concrete Substrate: 4.9 Structural Concrete (monolithic, precast or vapor barriers) SLOPE e See Section 3.1.4, pg. 6 SURFACE e Aggregate Spec. No. 60--5 ply Spec. No. 61--4 ply first two plies nailed -- remaining plies solid raoppsd. Spec. No. 60 wi--4 ply Spec. No. 61 wi--3 ply board type insulation appliad over DYCON Conerata Spec. No. 60 be--4 ply Spec. No. 61 be--3 ply base sheet as 1st ply of roofing system APPROVED NAILS AND MAILING CHART Nall Holding Power In Dycon Concrete at age 10 days. r~ Average force to withdraw fastener, ' in pounds. " E.S. Mark 111TM Fastener. (1W)-100 PROCEDURE Select clauses as required. Optional clauses in italic.. , Cooy m color denotes built-up roofing specification Conditions of Surfao* lo Roooive Roofing All surfacoo must bo dry, reasonably smooth, clean, rigid and froo from debris, loose materials, projsctlons and holts which might causa rupture of the mem brane. When to Apply Roofing Material to Dycon Concrete 1. After placement, allow a minimum of 60 hours prior to application of roofing materials for initial throe (3) inch (nomi nal) thickness of Dycon Conerata. 2. For average thickness of over throe (3) inches, allow an additional 45 hours prior to application of roofing matarials. 3. Whan rain occurs within 24 hours prior to application of roofing matarials, allow a minimum 24 houra of good dry ing weather after cassation of rain. Mat*rial Quantity Requirements See Section 3.1.7, pg. 7. - Application of Roofing Materials to Dycon j Concroto " Apply a uniform coating of Old Stylo Pitch over the entire surface into which, while hot embed the Insulation. If there are two (2) layers of insulation mop the Simplex Tube-LokTM, (1 % *)-60 . E.G. Inauldeck Loe-NailTM, (1%*)--50 Capped ES/Nail* (1 Vi-)--30 (Note: When Capped ES/Nail is used, in crease fastener quantity to minimum of 125 fasteners per square.) antics surfaco ot the first layer with Old Stylo ftteh into which, while hot embed the second layer of insulation. For application of roofing materials over insulation that has Been appliea to surface of Oycon Concrete, follow Appli cation of Roofing Materials procedure in Section 4.2, pg. 12. Application of Roofing Matarials to Oycon Concrete 1st Application of First Ply (Plies). A. For Saturated Feita. Install two (2) plies of tarred telts over entire surface lapped nineteen 119) inches. Nail on eight and one-nalt IB's / men cen ters one (1) inch from edge lap. (Note: This is approximately 100 nails per 100 sg. It.) Aporoved nails shall be used as noted on APPROVED NAIL and NAILING CHART --this page. B. Koppers Asphalt Bass Sheet Install one (V piy ot Koppers asphalt coated base sheet over entire surface lapped four 14) inches. Nail on nine (9) inch centers two (2) inches from edge lap and down center ot each sheet on nine 19) inch centers. (Note: This is approxi mately 100 nan's per 100 sq. It.) Approved nails snail Be used as noted on APPROVED NAIL and NAILING CHART --this page. N 2nd. Spec. No. 60 . -opiy three (3) plies of Koooers Ap proved Tarred Felt, laooing ones wentylour and two-thirds 124*oi mcnes. Where siope ol deck <s one-halt ("i men per loot or more, nail each sneet ot 'eit six , oi inches from the Pack edge on twentyfour (24) inch centers. All laps shall oe mopped with pitch the tuil twenty-tour and two-thirds !2423j mcnes, so that m no place shall teit touch leit. 2nd. Spec. No. 61 Apply two 121 plies of Koopers Ap proved Tarred Fell, upping pnes nineteen (19) inches. Where slope of seek is onehalt C-z i inch per foot or more, nail each sheet six (6) mcnes from the Pack edge on twenty-four (24) inen centers. All lacs snail be mopped with pitch the fuil nine teen (19) inches so that m no place snail ten touch felt. 3rd. Pour over the entire surface of the roofing membrane a uniform coating of Old Style Pitch into which, while hot. embed not less than four hundred ;-C0) pounds of gravel or three hundred (3001 pounds of slag for each one hundred (100) square feet. General ReqtHfoments on pages 6 through 10 and Detailed Specification* on pogaa 24 through 2S are a part ot this specification and must be adhered to where applicable. 19 deck construction: Dycon Concrete Substrate: 4.10 Formboard and Bulb-Tees SLOPE a See Section 3.1.4, pg. 6 SURFACE a Aggregate Spec. No. 70 be--4 ply Spec. No. 71 be--3 ply base sheet as 1st ply of roofing system Spec. No. TOwibe--4 ply Spec. No. 71 wibs--3 ply board type insulation applied over DYCON Concrete with base sheet as 1st ply of roofing system 3nvM or Slag EmooddM la Pourtng or Coal. Tar ntcti . Maaalaf 0* Coal Tar mod Uyara of Coal Tar mod anaTmarat of 3Mp Aaofialt N Dyoone Conor** ow donaaoaw. (uio-Taao add WatdaO Wlra FaOrle A PROCEDURE Select clauses as required. Optional clauat* in italic. Cooy in color denotes built-up rooting specification Condition of Surface to Receive Rooting All surface* must be dry, reasonably smooth, clean, rigid and free from debris, loose material*, projection* and holee which might cause rupture of the mem* brand. Whan to Apply Roofing Material to Dycon Concrete 1. After placement, allow a minimum ot 36 hours prior to application of roofing material* for initial three (3) inch (nomi nal) thickness of Dycon Concrete. 2. For average thickness of over three (3) inches, allow an additional 24 hours prior to application of roofing matsriala. 3. When rain occurs within 24 hours prior to application of roofing materiaia. allow a minimum 24 hours of good dry ing wtathtr aftsr cessation of rain. Material Quantity Requirements Sea Section 3.1.7, pg. 7. Application of Insulation Over Dycon Concrete Apply a uniform coating of Type Ml Detail of Specification No. 70 bs Steep Aaphalt over the entire aurface into which, white hot embed the insulation. If there are two (2) layers of insulation mop the entire surface of the first layer with Type III Steep Asphalt into which, while hot, embed the second layer of insulation. Roofing over insulation is to be in accordance with details of the specifica tion 70 bs and 71 bs described on this sheet----- with the base sheet solidly mopped to the insulation. Application of Roofing Materials to Oycon Concrete ' 1st Install one (1) ply of Koppers asphalt coated base sheet over entire sur face in solid mopping of Type HI Steep Asphalt so that base sheet shall not touch Dycon Concrete surface. Firmly broom or press entire surface of base sheet into hot steep asphalt so that no air pockets, wrinkles, buckles or kinks shall occur. Minimum side laps shall be four (4) inches ano minimum end laps shall be six (6) inches. All laps shall pe continuously sealed the full width of the lap. 2nd. Spsc. No. 70 bs Apply three (3) plies ot Koppers Ap proved Tarred Felt lapping plies twentylour and two-:niros 124m inches. Where slope ot deck is one-halt (Vn inch per loot or more, nail each sheet of felt six (6) inches from the back edge on twentyfour 124) inch centers. All laps shall be mopped with pitch the lull twenty-tour and two-thirds (244i) inches, so tnat in no place shall felt touch telt. 2nd. Spec. No. 71 bs Apply two (2) plies ot Koppers Ap proved Tarred Feit. lapping plies nineteen (19) inches. Where slope of deck is onehalf (<? / inch per toot or more, nail each sheet six (6) inches trem the bask edge on twenty-tour (24) inch centers. All >aos shall be mopped with oitcn the toll nine teen 119) inches so tnat m no place shall felt touch telt. 3rd. Pour over the enti-e surface of the roofing membrane a uniform coating of Old Style Pitch into which, while not. embed not less than four hundred (4001 pounds of gravel or three hundred (3CC) pounds of stag for each one nunared (100) square feet. Hernial Requirements on pages 6 through 10 and Detailed Specifications on pages 24 fvougli 2* are e part of tNe apaoMcaftow and must be altered to where eppfleabto. 20 New Koppers System Roof ONE SOURCE RESPONSIBILITY With the new Koppers System Roof all you need ie the deck. Koppers pro vides everything else. The result is an efficient installation of a long-lasting roof. And with Koppers having sole responsibility for all materials, your headaches of the future are a thing of the past SYSTEM DESIGN A one-source system means that the components were planned to work together. They are totally compatible. That's your assurance of a long-last ing, trouble-free roof. And because all the components arrive together, you'll have no costly installation delays. 10 + 10 GUARANTEE Your Koppers System Roof is total ly guaranteed for 10 years with an option for an additional 10 years when it is installed to our specifica tions. For further details of this un usual guarantee see "Guaranteed Roofing Program" on page 30. r DECK CONSTRUCTION: Hooper* Qae* Ftdar imutabon/ftoofmc ft*** Stnoor Soot Uspptd m Aopper* Sftso Aiewt Koooer* memedon Beef Taoe Embedded m and Comm Oak With Kocpen Steep MtfMt Two Alternate layer* of KM felt Mapped S***a Hopper* Rumen Hooper* Gina Fiber imutation/Roobnf At** Embedded -- n Hopper* SteeoAsodM Kopoe** imuieoon Base Taoe Embedded w and Coaled Over Hooper* Steee Asphalt Two Alternate Layer* ot KM Felt Mopped Sot* With Kopoer* Bitumen KOPPERS 7.1/Ko Architecture *nd Construction Matanats BITUMEN Koppers Bitumen has superb water and corrosion resistance, and acts as an excellent adhesive.-jhe bitumen has a self-healing ability because of a property known as "cold-flow." This allows hairline cracks to heal automatically. Because Koppers bitu men contains low volatile oils, the surface will not evaporate as fast as conventional roof surfaces. TWO SEPARATE PLIES OF FELT Koppers felts are specially selected to give the greatest strength-to-thickness- ratio available from organic felted membranes. They are heavier and stronger than conventional roof ing felts, yet easy to apply. GLASS FIBER INSULATION "Our Glass Fiber Insulation espe cially designed for the system roof, has two distinct advantages. (1) Be cause of its great weathering ability, you can dose a structure fast and it will serve as a temporary roof. (2) It is not subject to the blistering that is so prevalent with other insulations. Also, once, the insulation is seal stripped with our tape, it becomes an integral part of the roof. . TAPE Koppers Glass Fiber Tape is set in bitumen at pre-roofed insulation joints. Seal stripping with glass fiber tape helps make insulation more stable. Koooer* Guu Fiber imutation; floohnf 8im Stnoor Soot Moooed inKoooer* Steep Aw*** Koooer* tmutation Base Tap* Emoedded m and Coated Over with KOboer* Steep Aspnad Two Alternate Uyenot KM Fed Mopped Sol* wen Kopper* Bitumen MoOOinf* Of ~ deck construction: " KSR-- Wood piank/piywood Detail of specification No. 30 KSR-- Reinforced Concrete Detail of specification No. 31 deck construction: KSR- ' Metal Deck Detail of specification No. 32 21 KSR deck construction: 5.1 Spec. No. 30--WOOD PLANK/ PLYWOOD 5.2 Spec. No. 31--REINFORCED PORTLAND CEMENT CONCRETE (Monolithic or pre-cast) 5.3 Spec. No. 32--METAL DECK SLOPE See Section 3.1.4, pg. 6 SURFACE Aggregate . . PROCEDURE Select clauses as required. Optional clauses in italic. Copy in color denotes KSR Specifications Conditions of Surface to Receive KSR Materials See Section 3.1.2, Page 6 Material Quantity Requirements See Section 3.1.7, Page 7 Vapor Barrier Koppers System Roofs (KSR) are not normally used .where vapor barriers are required. When vapor barriers are required contact your Koppers Sales Representa tive for specific requirements. Application of KSR System 1st. Application of Koppers Glass Fiber Insulation/Roof. Base Reference: See Section 3.1.9, Page 7 a. (all applications) into a coating- of hot Koppers Steeo Aspnai:. nstai. Kopoers Glass Fiber `-s^.at.on Scot Base rr'mediateiy press- -g `..-m'v -nto place When more tnan one - 3/er of .r.su.ation is used, joints in esc- aver sna'l not coincide. Each suc- cessi.e .ayer shall se emoeoded in a -"I'erm coat.ng of hot Kqppers Steep Asphalt. - - -v " `-2 - b. Spec. 38 ' ' When applying Koppers Steep Aspnalt (and/or adhesive) keep material back from edges of wood plank and plywood to prevent asphalt or adhesive drippage. b. Spec. 31 ' siF When monolithlcaily -placed Po&Knd Cement Concrete is the structuraP-base, Kopoers Bitumen may be used as an alternate to Koppers Steep Asphalt, how ever keep back Irom edges of perirqetez. and opening a minimumxjt tour (iJTft&ma. b. Spec. 32 vS?1 ' i. The insulation joints parallel with the `lutes ot the metal deck shall be centered along the flat portion of the deck to obtain solid adhesion. Refer to Chart 5.6, page 23 to determine the minimum insulation thickness to span the open flute ot the metal deck. 2nd. Application ot Koppers Insulation Base Tape Reference: See Section 3.1.10. Page 8 Apply a solid strip of hot Koppers Steep Asphalt over the joints of the Glass Fiber Insulation/Roof Base at least one (l).inch wider than the Base Tape. Immediately embed the Base Tape in the hot Steep Asphalt. The Base Tape shall be pulled flat to avoid buckles, fiahmouths. etc. Use .. __ at least two (2T inch and^ape-end cross over laps. Completely toqsoat ail Base Tape with hot Steep AsphaJT When monolithically placed Portland Cement Concrete is the structural base. Koppers Bitumen may be used as an alternate to Koppers Steep Asphalt. (For temporary roofing fol low procedures in Section 3.1.15, page-8.) 3rd. Application of KSR Fefts^-C. : Apply over the entire surface "two (2) plies of Koppers KSR Felts, in a continu ous and solid mopping of heated Koppers Bitumen, lapping plies nineteen (19) inches. Bitumen shall be applied so that in no place shall felt touch felt. Slopes in excess of one-half f'j) inch per foot are not permitted. Base Sheet alternate is not permitted. 4th. Application of Koppers Bitumen and Aggregate Surfacing Pour over the entire surface of the ap plied felts a uniform coating of heated Koppers Bitumen into which,-while hot. embed not less than four hundred (400) pounds of gravel or three hundred (300) pounds of slag for each 100 sq. ft. Genera) Requirements on pages through 10 and Detailed BpsoMcaMons on pages 24 through 20 are a part of this specification and meat be adhered to whore applcable. 22 KSR Reference Data KOPPERS 7.1/Ko Architectural and Construction Materials 5.4 Calculated Heat Transfer Through Typical Roof Decks With Various Nominal Thicknesses Of Insulation "U" values rounded to two decimal pieces FLAT METAL OECK No Insulation, UsOJO METAL OECK* SUSPENDED CEILING POURED GYPSUM DECK r SLASand 1" FIBERQLAS OARO No Insulation, UxO.IS LIGHTWEIGHT CONCRETE DECK CONCRETE DECK WOOD DECK 2 SLAB and H'QYPSUM BOARD No Insulation, Uat& ISAM -r-Kl Jtl/M. No Insulation, UsUS ess 4* SLAB No Insulation, U at0.70 1" BOS. (Actual 'Hi") No Insulation. U=0.48 2"FLANK (Actual 1H") No Insulation, 0*0.38 i 8 b si \ ii i 1 I Si li 1 li i ]; i scii 9 Csil a 1l li d li I 1il li 1 1Ctveaf| E^ 9 .05 2X.-2X .04 1X-IX 2.0 .07 1X.-1X. .06 1K.-1H 1.4 .06 2% .10 214 .11 IX 3 12 .12 1X .13 154 254 1.0 .14 IX. .15 IX .16 114 2 0.1 .17 IX. .16 114 1X-1X 1X.-1X. 1X.-2X. 1X-IX 2X.-2X. 2X.-2X. 1X.-1X. .05 1X-IX 214 1.4 1X.-1X 1X-1X. 1X-IX 1X-1X 1X.-1X. .06 214 1.4 ix 3 12 1X-1X 2X. 1.4 1X.-1X. 1X-1X. 1X.-1K. .07 IX. 3 12 IX 2X, 1.0 2X 1.4 2X 3 12 1JL-1X. 2X. 1.4 2X. 1.4 .06 IX. 2X. 1.0 IX. IX, 0.65 2X. 3 12 IX 2X, 1.0 2X. 1.4 214 IX, 3 12 .09 114 2 04 % IX IX 2X. 3 12 IX. 3 12 IX 2X 1.0 .10 IX. IX, 0.65 X 1 IX. 2X 1.0 IX. 2 04 IX IX 2X, 1.0 IX .11 X. X IX. 2 04 1 IX, 0.65 IX 2X, 1.0 IX, iv. 2 04 .12 'X. 1 X, IX. X. IX. IX iy. .13 'X. IX. IX, 0.65 'X. IX IX 2 04 i IX, 0.65 .14 X. X 'X. X. 1 IX. 2 0.60 IX, X. .15 X. KX IX. 1 IX, 0.65 % .16 X, % IX. x. X1 .17 X1 X 1 IX, 0.65 X X .18 .16 IX. r/. 0.65 % 'X. 'X. X. X .19 JO 1 X X. 20 21 'X. X. X X1 .21 .22 X. 'X. %. X, .22 .23 X 23 .24 'X. X, X1 X. X .24 .25 % 25 .26 X i .26 .27 X. X .27 .26 X. X .28 .29 /. .30 1 X, .29 .30 .31 X. 14 .31 .35 X, .35 .40 .40 Tko "U" value measum tM Hut tranmttad tkmu|k oat tquare Nat. m ant Naur lor uck dofno Fakionkoit ditfonnca in tompotatan kateean tkt nr on sack tidt. Saa "Contraction Spaohor,'' tufflmot turn IMA "Tkaraul kroportm al Wallf ind Hood." (Holt: Supportiaf Stool net included in pound upturn "IT volets.) 5.5 THERMAL VALUES CONDUCT- RESIST- Kse EXP. URETHANE FIBKR- FOAMGLAS ANCS ANCK INSUL. 1PERLITE BOARD BOARD .10 10.00 2-7/16" 12P 8.33 2-1/16" 3" .13 7.69 IX- 2X" .15# 6.67 IX" 2X" .16 625 1-9/16* 2X" .19# 526 1-5/16- 2" 21 4.76 1-3/16" IX" 24# 4.17 1-1/16-- IX* 25 4.00 1* 27 3.70 15/16"* .29 3.45 IVi" .36# 2.78 x-- 1* .48 2.06 9/16" X" .72 1.39 1.4" 12" 1.0" 0.8" 0.65" * Ol 3* r 2" IX" IX" IX" 1" X" #-- "C" valued ol Simplified Practice Recommendation R257-55. * -- Standard Stock matenaia--others meda-to-order. 5.6 MINIMUM THICKNESS TO SPAN OPEN FLUTE METAL DECKS TNcfcneae Max. Flute Span Standard Roof Inaulatton X X X 15/15 1-1/16 1-5/16 1-7/16 X 1 IX 2X 2X 3X 4* Wide FMa Root Insulation X * 15/16 1-1/16 1-5/16 IX 2X 2X 31/. 4V,* `Must have a 2" minimum flange beanng surface between flutes. 23 6. Koppers Flashing Specifications 6. General Application Detail Flashings are the terminal closures of a roofing system which perform a waterproofing, and in some systems, a decorative function. Flashings must be installed at all intersections formed by vertical surfaces. Their import ance cannot be stressed too strongly. Water entering the roofing system through flashings can result in water vapor forces which will destroy the effectiveness of the roofing. Koppers flashings are an integral part of a Koppers roof. Designed for flexibility so that slight movements do not dislodge them and fastened securely to the wall, they give many years of service. It is particularly Important that the top edge of the flashing be protected by counter flashing, which will insure a diversion of the water away from any opening which might develop be tween flashing and wall. In qgy case where the design or anchoring system of metal counter flashing is difficult, the top of the flashing system should be double stripped with Koppers Glasfab 4" wide set in Koppers tar base cement for Specification 110 or Koppers flashing cement in Specifi cation 108. ' Metal work is only useful for dec orative, water shedding, or protec tion against mechanical damage, and is not a waterproofing part of the flashing system. Because of the high coefficient of expansion of sheet metals and the large ' temperature changes experienced on a roof, sheet metal or exposed metal components must be isolated from the waterproof ing components of the roofing and flashing system as efficiently as pos sible to prevent the metal from split ting the membrane. Flashing should be installed as roofing progresses to prevent water damage to insulation or deck under the roofing. If this is not possible water cut-offs must be installed and later removed when flashing is in stalled. Metal counter flashing or a. top seal of Glasfab and flashing ce ment must be installed as flashing progresses. . The basic Koppers flashings re quire a metal cap flashing to be in serted in the raggle immediately upon completion of base flashing. The cap flashing is to extend into the raggle not less than two (2) inches and is to have not less than- a four (4) inch exposed apron extending down over the gle base flashing. Completely fill rag with Koppers flashing cement. i . NOTE: ii 1. If bonded flashing is required, it must be installed in conjunction with a Koppers bonded roof and can be bonded for standard periods up to but not greater than the period for ' which the roofing is bonded. To be bonded, flashings must be set at least 714" above the roofing base. 2. Metal Cap flashings are not bond- able and are not included under any flashing bond. . 3. Metal work of any description used as flashing or a part of a flashing sys tem is not bondable and is not in cluded under any flashing bond. Specification No. 108 Application Detail \ .i 24 KOPPERS 7.1/Ko Architectural and Cortstruclion Materials 6.2 Specification No. 108 (reinforced asbestos) 1 I 1I Recommended where sunlight Is tha predominant axpoaura. Should ba uaad for all high flashing . METAL CAP ASBESTOS BASE (1 + 1) COATED SURFACE Application .. ... Extend pliea of roofing felt* and pitch or bitumen mopping* walla, parapets and curbs for a distance of two (2) inches above cant strip. A raggle not less than seven and one-half (7Vi) inches or more than twelve (12) inches above the roof deck is to be provided except where- capped nailers are used. Prime all masonry walls from tot of roofing felts to raggle with Ko|> pars Asphalt Primer. Allow to dry thoroughly. - In a uniform coating of Koppers Flashing Cement, install on* (1) ply ' of Koppers No. 15 Asphalt saturated asbestos felt extending from the rag? gle to not less than four (4) inches - from the base of the cant onto the of Koppers asbestos felt not less than j roof. On top of this apply a second four (4) inches wide set in a coating | uniform coat of Koppers Flashing of Koppers Flashing Cement. j Cement into which-embed ope (1) ply. Coat entire surface of flashing with ' of Koppers reinforced asbestos base . Koppers Flashing Cement or Koppers I flashing (reinforced fabric side down). Chembond (including nail caps along Nail with one and. ooe-halL(1Vfc)-tnch:^ top. pf flashing as well as top 1 masonry roofing nails throughfiat tin edge* of felts to seal at wall). j discs along upper edge I$K (8} . Interpiy and top coatings shall be < inches o.c. maximum into mortar troweled uniformly, full height and I joints. For concrete construction, naif" continuously approximately one- to treated wood nailing strip* set irv eighth (Vt) inch thick. Plies must be flush with the surface with appropri laid in smoothly with no pockets, ate nail through flaPtin disc*. wrinkles or buckles. End laps for the-two (2) pile* shall . Install metal cap flashing. be not less than three (3) inches and staggered not less than twenty-four NOTE: Hot applied steep asphalt may (24) inches. End laps of reinforced be used.as an alternate to the two bass shall be nailed vertically a mini (2) interpiy troweiings of asphaltic mum of once into the waU at upper plastic cement. One (1) ply of No. 15 edge and once into the cant at a point asphalt felt may be used in lieu of not lower than the mid point of the ~ the one ply underlayment sheet of cant - * No. 15 asphalt asbestos felt when re End laps of reinforced base after quired. All other requirements of this nailing shall be covered with a strip specification must be adhered to. 6.3 Specification No. 110 (for water coded roofs) Recommended for water end corrosive atmoepnere exposure. Low capped and sealed flashings. METAL CAP COMPOSITION BASE (2 + 2) COATED SURFACE Application Cant strips shall be installed at the angle between the roof deck and the parapet wail or any other similar per pendicular surfaces. Extend plies of roofing felts and pitch or bitumen moppings up all walls for a distance of two (2) inches above cant strip. A raggle of not less than tan (10) inches above the roof deck is to be provided for water cooled roofs and water retaining roofs. Prime all masonry walls from top of roofing felts to raggle with Koppers Concrete Priming Oil (coal tar base). Allow to dry thoroughly. Set two plies of Koppers Approved Tarred Felt in troweiings of Koppers tar base roof cement Have plies ex tending from the bottom of the rag gle; the first extending out onto the deck not less than four inches from the bottom of the cant strip, and the second, one inch beyond the first Over this apply two layers of tar satu rated asbestos felt similarly imbedded in Koppers Tar Base Roof Cement each ply extending onto the deck one inch beyond the preceding ply. I Nail with one and one-half (1V2) i inch barbed roofing nails through flat tin discs at upper edge approximate- \ ly ten (10) inches o.c. (For brick or block construction, nail into vertical mortar joints. For concrete construc tion, nail to treated wood nailing strips set in flush with the surface.) Felts are not to exceed ten feet three-inches (10^") in length. Ends of j connecting strips are to overlap three (3) inches and are to break at least ! twenty-four (24) inches with laps of underlying strip. All plies of felt shall be firmly pressed into the troweiings of Kop pers Tar Base Roof Cement so that there will be no wrinkles in the fin ished surface. 25 7. Flashing Details GENERAL INFORMATION There are numerous flashing details that have been proven by experience over the years. There are normally a number of acceptable construction details for accomplishing one purposeSThe archi tect should select a detail that best serves the purpose under the various and different condi tions concerned with the specific job at hand, in certain cases, slight modifications are necessary to adjust a proven detail to job conditions or one method may serve better than another. The details shown in this manual are some sug gestions based on experience. Space limitations prohibit listing many others. - -- Design or selection is a responsibility of the architect -- Koppers representatives are available to review flashing details to assist the architect in providing the best details for specific jobs. i 7.1 Raised Edge ***> * Sei >n Xoootrt Framing Cement Nans spaced l~trum edgect motol stopand .J-eoertthrough ne* 7.4 Parapet/Precast or Poured Concrete Note: WoM Shad be Prepared to Eliminate Water Penetration Through Concrete to Undewoe o* Rooting 7JS Parepet/Metai Curtain Wall 2 Rhea ot Membrane Set * ^\ 7.3 Equipment Support 2 Plus o! Membrane in L,, e-~_ Flashing Cement Turned Down / Flashing Specs. 108or *110. Sheet Metel Cam 4- 14- ' Treated Wood Nailers 26 f Note WTten composition hesnetg does not extend uo to wed cao or weti cao dots not pronoe water egress protection a metai counterflashing must oe mweHaa according to procedures found m flaming specifications Mui 7*" y Cent Koppers Rooting ^ Mfj l---------- ruiaifii ill > *c* / ' Treeteo wood Newer S~\ Flashing Details (continued) 7.7 Tapered Cant KOPPERS 7.1, Ko Architectural and Conatiuction Matanai* 7.8 Tapered Cant Flenfemddi*MSe*atmiGuroewoetSrj*00 FiMfliof Cemem Nans soacM l" from toe* ot met* ttnp ana J* teen m treated wood T^o^otF^tFMdwad over Fien**mCo#< Terete* Bitumen or Ter Bm* Cement Tapered Cant Mat inctm* 2*0*r<00f Wootm* Mamoran* f lnf* andtft 4" minimum Metti Grave* Stoo Seim Koooart Fiasmnf Cement Metal Pitcft 0*m Seim Koooen Flamm* Cement Natit.ioacad 1 fromatot metai str.o ana 3" aoart n treated wood n*Mto| tno ^ p,^ ol F#<, Feathered irFianfe-nCoji TarPifcft. Bitumen or Tar Bata Camant TaoaradCant . Ma *Ktirte Z oar toot Rootm| Mtmor*ne Tree*** Wood N*n*r 7.9 Hanging Gutter KoopM Roofing AppropnanNatfanalentm For Maximum Anchorage Met* Grave* Saco With 4-Flange Bedded m Koooert Fiasfttn* Cement Treated woedNaaer 7. Vented Edge . Gravel Stoo neaed 1"from inner ed*eot Flanga and 3-OC. "TM" Flangemdttt 4" immingm r *** of Fed Feathered Over Flange m Coat Ter Piteh. Bitumen or Tar Base Cement -Taoerad Cant Manmom mcnna-2- oar toot 7.11 Fienge Set m Koopers F'asnmg Cement Vent Pipes, Stacks, Flagpoles, and Other Projections Lead Sleeve with Flange r-- 2 Fett Smos Set in Pttch. or Bitumen Over lead Flange 7.12 Metal Band Sotted On Meat Fitch Dam -- insulation vapor 0arner Treated Wood Na*ier W Vent Hole Opening* 18" to 24'OC Flange Set m Hoppers Fiasnmg Cement Fasten Flange to Oeck All vent pipvt. stacks, flagpolaa. or othsr projections penetrat ing the built-up roofing, whether Indicated on drawings or not, must have a proper metal slteva flashing with flanga, pan flash ing with flangs or othsr flanged flashing installed. Behind metal sleeva and beneath roofing membrans next to deck install metal pitch dam at shown in datall. The sheet metal flanga must be cemented to the surface of the felt with a mopping of hot coal tar pitch or bitumen. Over flange apply, with alternate mopplnga, two (2) reinforcing plies of fait so that the I first sxtands not lass than throe (3) inches bsyond the outer ( edge of the flange and the second not less thin six (6) inches, j 27 Flashing Details (continued) 7.13 Structural Anacmnam witt) Wattr S*al.(**6oit tnrough Naoeran* Wain*.) Naoeran* Pad Future Columns, Sign Supports and Angle Irons 7.14 2 Pitas of Mamorana in Flawing Camant Tumad 0o*n OvarEdg* Flasttmf So*c. *106 er #110 Koepera Roofing Structural Section W*ld Plata Watartigtit Traatad Wood Nailar Surrounding Column StuQ Column Attacnad to Structural Framing At all locations whara stub or future columns, sign supports and angle irons are to penetrate built-up roofing, Koppers recom mends wooden curbed base units with cant strips to be installed to accept standard built-up composition-flashing system. Whara structural staal section extends beyond "stub" height, metal cap flashings with tight fit to the structural section must be fabricated and continuously welded to the projection to assure a watertight metal cap. ' For pitch pocket design consult your local Koppers sales representative. 7.15 Curbed Expansion Joint Dn Flttftrftf m Koo0o*r Flasfcmf Cement Turnedl Doowwnn &*r Edge* *\ /s'".M,SeJot*oeCrfeoAeeqndd.)Oeets 7.16 Roof Drain iF"iaFalaAwwitnFgtaCn*ima W ,St'iOCiAJ <flOoOot>cr*nt mm U. rreeled Wood Nedere --i Curb expansion joints are to be flashed in accordance with Koppers specifications for parapet wails and mutt provida nail ing to hold matal cap and flashing membrane In place. Metal cap must be designed to expend so as not to disturb flashing. It is the responsibility of the designer of the building to pro vide for adequate expansion joints. For the protection of the roofing system against splits causad by expansion and contraction, Koppers racommands that an expansion joint be installed: (1) on large roof areas at laaat every 200 feet In each direction, (2) at ail placss whara the structural supports and roof assembly change direction, (3) where type of adjoining dtek materials changt. Where control, expansion, or contraction joints are provided in structural steel, deck material, or deck system, provisions must be made for continuation through the roofing system. See Section 3.3.6 (Expansion Joints) Page 10. All roof drains shall be provided with metal roof drain flashing flangas which axtand at laaat 12* beyond drain opening and shell be stripped with felt in accordance with drain detail. All drains should be provided with expansion joint sleeves. The sheet metal flange furnished with the drain must be ce mented to the surface of the fait with hot coal tar pitch or flash ing cement Over the flange apply, with alternate moppings or troweling*, two (2) reinforcing plies of felt so that the first ex tends not less than three (3) inches beyond the outer edge of the flange, and the second not (eta than six (6) Inches. Roof drains must ba of a type provided with a wide lead or copper flange. Strainer construction should provide adjustment for meeting variations in roof level or slope. To obtain proper drainage, roof drains should bo locatad at points of lowest axpactad deflection In roof deck. 28 Flashing Details (continued) 7.17 Root Vent (Existing Building) KOPPERS 7.1,-Ko Archrtecttjraland Construction Mstsnats 7.18 Roof Vent (New Building) Flashinf Cement Over Fait Edgas Sacurad toWood Neiler Sr Flange Sat in Flashing Camant Two Plias of Fait Sat in Pitch or Bitumen Lag Bolt through Neoprene Washar Nota: If countarflashing is not mtagral in vant flanga provide saparata matal countarflashmg undar flanga 5 - FIange Set in Flashing Camant v: ;v^.% n Loom insulation ^ Traa.ttwadn wWrovo*dt nN>a.ilie< rs with Vt' VT Continuous Vant Holes Appro*. T O.C. Cant Traatad Wood Nailars with V * Lj" Continuous Vant Hoias /ppro. 2* O.C. Hoppers doas not racommand occasional or spot vant* through tha root aa tha only vanting method or a substitute for undaraida or continuous vantad systems. Thara may ba cartaln Inatancaa whara spot or mushroom typs vanta might ba dsamad advisable by tha dasignar tor a naw building (sg. at axpanslon joints for vant raliaf on long run undaraida continuous vanting syatama. ate.) For now construction, woodsn curbed bass units with cant strip to accspt a standard built-up composition flashing systam is racommandad. For sxistlng construction whara raliaf is re quired to vant tha saturatsd insulation cavity, spot vsnts may be usad without wooden curbs. 7.19 Walkways (Treated Wood Walkway) TSrleeeatpe*d**WooFoitecnh Treated Ftwin Waikwey Raohn* Memtxao* Flu* 2 Pty Str 7.20 Traffic Pad Ceramic CnmjM Aggregate 7.21 Roof Opening Curbs extending a nominal 8 inchas to 12 Inches above roof surface shall ba provided at all openings for skylights, ventilators, expansion joints, ate., to pro vide for installation of adequate base flashing. Skylight Condensate Gutter Ventilator Flashing Nailed 10" O.C. Flashing Specs. #108 or #110 Hoppers Roofing Wood Cant 4" x 4" Treated Wood Nailers 29 8.1 Guaranteed Roofing Program (KSR only) Guarantees for KSR Roofing and Flashing systems are available for the listed specifications in this manual. All materials must be constructed in accordance with Koppers specifica tions, using KSR materials and by a roofing contractor approved, in writ ing, by Koppers. Any deviations from specifications or requirements of Total Guarantee procedure must be approved by Koppers. Koppers Total Guarantees are available for KSR System Roofs only and for a 10-year period. Guarantees cover only the materials supplied for the KSR system and their application where approved. Additional Options Available To The Owner 1. Free Inspection.At any time dur ing the first nine (9) months of the final year in which this Guarantee is in effect, the Owner may request that Koppers Company, Inc. inspect the roof guaranteed herein free of charge and without any obligation in order to determine what repairs, if any, may be required to make the roof eligible for an additional ten (10) year Guarantee. Koppers Company, Inc. shall then perform an inspection, make an inspection report and sub mit such report to the Owner. The inspection report shall advise the Owner of any maintenance repairs which may be necessary to qualify for renewal of this Guarantee for an additional ten (10) year period. 2. Renewal of Guarantee. Should the Owner elect to renew this Guar antee for an additional ten (10) year period, the Owner shall cause the repairs specified in the inspection report to be made at the Owner's sole expense by a roofing contractor approved by Koppers Company, Inc., and shall notify Koppers Company, Inc. in writing of his desire to renew the Guarantee no later than ninety (90) days after the expiration date of the above Guarantee. Upon payment by the Owner of a guarantee fee for such reinspection of 2/3 of Koppers Company, Inc. then standard guar antee fee, Koppers Company, Inc. shall reinspect the roof in order to determine whether the repairs spe cified in the inspection report have been satisfactorily completed. If Koppers Company, Inc. then finds the roof acceptable, this Guar antee will then be extended for an additional ten (10) year period from the above expiration date. Koppers will Issue its KSR Total Guarantee for low sloped or flat roof ing. KSR systems, to be guaranteed, must be constructed in conformance with Koppers specifications. Koppers Total Guarantees are not available for residential roofing. Koppers Total Guarantees are transferable upon timely written notification of change of property ownership. Koppers Total Guarantee roofing program provides for use of proven specifications, quality materials and that the roofing will be applied by a qualified, Koppers approved roofing contractor. It also provides a discus sion of specifications during the planning stage, consultation during the construction, and assistance to the owner throughout the guarantee term as may be necessary in relation to leaks, additional items to project through or be placed above the roof, or any matter related to the perform ance of the total system. It further provides for repairs of leaks to the roofing not occasioned by defects in the building, abuse or extreme weather conditions during the term of the guarantee. Koppers Total Guarantees do not cover repair, in stallation or the replacement cost of decking materials, metal work or products in the roofing assemble furnished by others. Nor will Koppers assume any responsibility for any damage to the guaranteed roofing system caused by, or the result of, the use of these products, their in stallation or attachment KSR Total Guarantees are not effective in cases of vandalism or owner abuse. Koppers Total Guarantees are available within the continental limits of the United States in all cases ex cept those areas where Koppers does not presently provide inspection service. Charges for KSR Total Guar antees are made up on a per square (100 sq. feet) basis of the roofing system. Guarantee charge payment is due at the time the guarantee is issued and no additional charge is necessary during the term of the guarantee. Koppers reserves the right to can cel the guarantee if the roof is dam aged due to causes not covered by the guarantee if It is determined that its satisfactory performance for the remaining term of the guarantee is impaired. Cancellation due to dam age of this type does not provide for any refund of the original charges. 30 .y KOPPERS 7.1/Ko Architectural and Construction Material *"s 8J2 KOPPERS Bonded ^ Roofing Program Bonds for Koppers Roofing and roofing will be applied by a qualified Hashings are available for the listed Koppers Approved Roofing Con specifications in this manual. Roofing tractor. It also provides for discussion and flashing must be constructed in of specifications during the planning accordance with Koppers specifica stage, consultation during construc tions, Koppers materials and by a tion and assistance to the owner roofing contractor approved by Kop throughout the bond term as may be pers in writing. Any deviations from necessary in relation to leaks, addi specifications or requirements of tional items to project through or be bond procedure must be approved placed above the roof or any matter by Koppers. related to the performance of the Koppers bonds are available for IS roofing. It further provides for repairs or 20 year terms.' Bonds only cover of leaks to the roofing not occa built-up roofing and flashings whsre sioned by defects in the building, approved. abuse, or extreme weather conditions Koppers will issue its standard roof during the term of the bond up to the ing bond for coal tar pitch flat or low- monetary limit specified in the bond. sloped roofing and will include such ' Hashing membranes may be include Koppers steep asphalt roofing as re on request in riders to the bond. quired in conjunction with the flat Koppers bonds do not cover re or low-sloped roofing, provided the pair, installation or replacement costs steep roofing does not exceed 50% of decking materials, vapor barrier of the total roofing to be bonded. All materials, insulation products, metal roofing to be bonded must be con work or products in the roofing as structed in conformance with Kop sembly furnished by others, nor will pers specifications. Koppers assume responsibility for Koppers bonds are not available any damage to the bonded roofing or for residential roofing. flashing caused by or the result of Koppers bonds are transferable the use of these products, their in upon timely written notification of stallation or attachment Bonds are change in property ownership. not effective in cases of vandalism or Koppers bonded roofing program owner abuse. provides for use of proven specifica Koppers bonds are available within tions, quality materials and that the the continental limits of the United States in all cases except those areas where Koppers does not presently provide inspection service. Hashing endorsements when re quired for bonded roofing may be for terms up to but not exceeding the term for which the roofing is bonded. Charges for roofing bonds are made on a per square (100 square feet) basis of the roofing membrane. If a flashing endorsement to the bond is required, the area of flashing is included for computing the total bond charge. Information on bond charge fees and minimum charges with re lation to monetary coverage limits and terms are available through Koppers Approved Roofing Contrac tors, Koppers District Offices and lo cal Koppers Roofing Representatives. Bond charge payment is due at the time the bond is issued and no addi tional charge is necessary during the term of the bond. Koppers reserves the right to can cel a bond if the roof is damaged due to causes not covered by the bond if it is determined that its satisfactory performance lof the remaining term of the bond is impaired. Cancellation due to damage of this type does not provide for any refund of the original charge. ~ 31 F Prlnttd m U.S.A. t