Document rXwkQVjN0o17yZDnR6gkQ007

aspkaxjT Rooi^nsrc^ liiaLAjqTJHSAx^TjRHii^e AsgtociAncoasr 230 Park Avenue, Suite 555B, New York, N.Y. 10017 August 9, 1978 TO: Engineering and Systems Committee Members Robert F. Deerfield GAF Corporation L. W. Weaver Bird & Son, Inc. N- D. Musser The Celotex Corp. +Len Sadosky CertainTeed Corp. *Ron Mulligan ^ Cork* The Flintkote Company Johns-Manville Sales Corp. Cullen C. Taylor Masonite Corp. +David E. Richards Owens-Coming Fiberglas Corp. John H. Davies Reynolds Metals Company Robert C. Collins 3M Company {< C-toA Chairman'Robert F. Deerfield has called a meeting of the Engineering and Systems Committee for September 6 & 7, 1978 at the New York Athletic Club, 180 Central Park South, New York, N.Y. 10019. An agenda is enclosed. Please advise this office if you will attend and if you wish a room reservation made for you at the New York Athletic Club. cc: John Boyer, John M. Havas, Sydney M. Lewis BIRD 012853 IJ/LAJSTU^^ KOOF-IISrC^ ASSOCIATION 230 Park Avenue, Suite 555B, New York, N.Y. 10017 Engineering and Systems Committee September 6-7, 197S New York Athletic Club New York, NY AGENDA Sept. 6th - Meeting opens at 9:30 A.M. 1. Review and preparation of new manual,"Manufacture, Selection and Application of Asphalt Roofing & Siding Products." Lunch 2. Continuation of review and preparation of new manual. Meeting concludes at 5:00 P.M. Sept. 7th - Meeting opens at 8:30 A.M. 3. Discussion of staple application. 4. Budget 5. New Business We will attempt to complete business prior to noon. Please note that this meeting is scheduled for both the 6th & 7th of September to give ample time for the rewriting of the manual. BIRD 012854 REPLY TO: F..W1' WALPOLE. \t.\ il'.'n i:' TEL. 6i:-66S-2a*i October 2, 1978 Mr. David Lewandowski Sumner Rider & Associates, Inc. 355 Lexington Ave. New York, NY 10017 Dear Mr. Lewandowski, In response to a recent request from Bob Deerfield, I am attaching recent copies of Bird application instructions which might be of value in pre paring the revision to the manual. Very truly yours. Aeonard W. Weaver Technical Center Mgr. LWW/JT Attachments CORI'ORATK HEAIXJUARTKKS: EAST WAl.l'l >1.E. MA MILLS: EAST WALPOLE. MA NORWOOD. NLA PHILLH>SI)AI.K. Rl CHICAGO. II. SHREVEIl>RT. LA CHARLESTON Si" PERTH AMI>\. NJ . SAN MATEO. CA BARDSTOWN. KY LAWRENCE. MA LEWISTON. ME - MARTINEZ. i A . Ul! Aiiv.7< )N. CA PORTLAND. US FRANKLIN. OH BIRD 012855 ^SFIEiAJL.T jROGT'rNO -NVT >^-NrTTTr!^<ryrTTXgJB^gs ASSOCZA.TX03ST 230 Park Avenua, Suite 5SSB, New York, N.Y. 10017 January 16, 1979 TO: Engineering & Systems Committee Chairman Robert Deerfield has called for a meeting of the Engineering and Systems Committee to be held on Wednesday and Thursday February 21 and 22, 1979 in New York City at the New York Athletic Club. Attached is an agenda. We have a small block of bedrooms reserved at the New York Athletic Club. If you want to reserve one of the rooms please let us know at ARMA's New York office before Wednesday January 24th as the New York office is closing on Jan. 26th and moving to Washington D.C. Please let us know if you plan to attend the meeting as we need a count for our meal guarantees to the club. Yours truly H. H. Whittemore cc: J. G. Hall, Franklin R. Winnert, William A. Hindon John Boyer, Richard Synder. ASPHALT ROOFUSTG^SSOCI^TIOISr 230 Park Avenue, Suite 555B, New York, N.Y. 10017 Engineering and Systems Committee February 21 and 22, 1979 New York Athletic Club New York, New York AGENDA Feb. 21st - Meeting opens at 9:30 A.M. 1. Review and preparation of new manual, "Manufacture, Selection and Application of Asphalt Roofing and Siding Products". 2. Flashing drawings for manual Feb. 22nd - Meeting opens at 8:30 A.M. 3. One and Two Family Dwelling Code. This Code is being revised and may be used by HUD as its main standard. Engineering and Systems has been asked to take a closer look at this standard and be prepared to offer recommendations to the Code Committee for possible transmittal to HUD. Please refer to attached letter from Ray Corbin, Chairman of ARMA'f Code Committee. 4. Discussion of Staple Application. Representatives of I-SANTA will make a presentation to the Committee at 10:00 A.M. and have been invited to stay with us through lunch. BIRD 012857 Johns-Manville Sales Corporation Kn-Cryi Ranch Denver, Colorado 80217 (303)979-1000 September 19, 1978 Mr. H. H. Whittemore Asphalt Roofing Manufacturers Aasoc.L 230- Park Avenue - Suite 555B New York, NY. 100X7 : Dear Harold:"' - -- -i Enclosed is a copy of the HUD "Minimum Property- a- Standards for One and Two-Family Dwellings", 4900.1, Revision No. 5, April 1977. Gus Degenkolb^fle^s that ,^ this Standard will become stronger, to the extent' that^tv ; it will be used by HUD as their ma3Si~$<sandafrd and - Si eventually might even be adopted by-^S-JfiSSel^Btli'ldifigsl^m-; Codes. The Code Committee feels that both the Bngineelai^p:'<~ & Built-Up Roofing Committee should examine the Standard ' and offer their recommendations so that A.R.M.A. may take a position with HUD. Will you please sehd^copies Some of the objections to the Roof Covering-dectioh oh residential shingles are: .ft* jJSK. 11* *iO 4 1. 609-3.lGdneral c. Nailing. Delete acceptance^of low density board sheathing. -ca 2. 609-3.2 Asphalt Shingles. Insert reference to organic and inorganic shingles. 3. 60ff-32';iispfc|talt Shingles b. Show reference to Class A as Well a: Class C. ... . A .-Aa-' 4. ' 'Table:',6-3'*X^Min Roof Slope. Delete portion that does not require"felt on slopes exceeding 7" in 12". 5. Table 6-9.1 Min. Roof Slopes. Delete'reference to triple coverage entirely as 4" exposure is no longer used. BIRD 012858 2- - 6. 609-3.2 Asphalt Shingles f. (1) Delete need to tab low slope application unless non-seal type shingles are used. 7. 609-3.3 Wood Shingles. Determine why they should not be Class C or greater. 8. 609-3.4 Wood Shakes. Determine why ..hey should not be Class C or greater-, If the Code Committee may have" the BUR and Engineering Committees' comments by our Spring meeting, we will make a' recommendation on the Standard that A.R.M.A. can send to HUD. Sincerely^-o- r - kl -.5.7 A * . , . "( , ` ' V.- '7 r -i-.zoIte -amocef R. L. Corbin, Chairman v CUv - , D^rsi. , - ARMA..Code;Ggmmi^tjee.,:d b^qobs 9d c*,* sou .-1 >. jza ::-6A2- aleai zsyJifixxcC - >.3 s-n'"? "G6 e.~ r-3 ' ->oi eeiii'-mo'.' ... ' .,=! .-i, t . S*:McLewis : , j. G.-; Dogenkoib R."H. Deerfield, 'xv'.ijSLC uir .9 x -sr.* T r r7! xw a-T>1.- .. -q,.- ,. Chairman - Engineermg,Committee W. R. Freeman, Chairman - BUR Committed' J. J* Gafford i - T. C. Campbell H. F. Koopmann M. Dagnaud;^-. , q D. Hughes S' t rj; r\ ?e . .&!>+ '* %. --- wor.2 .a =. -3 ::: :j ;*#=' &.T-, i >/' v '-i : flcxseox.- _-<cc*i :o .ai: -:-i 3a BIRD 012859 4900.1 A 607-4 FLASHING c' *607-4.1:^General ~ ......... a. Flashing shall be provided'Co prevent water from penetrating the exterior surface of a building element or to intercept and lead water out of it. Materials shall be selected on the basis of their suitability to the particular application for exposure, resistance to deterioration and differential thermal movement of horizontal and vertical building elements. b. Flashing* shall have-a service life at least equal to the assemblies into which it is built. c. Alternate products or systems of; bitumen-impregnated, plastic or elastomeric materials may be* Used for flashing when they- are installed in accordance with the manufacturer's recommendations and ares''acceptable to1 the HUD field office. Counter flashing is considered exposed flashing, and shall be .V-sheet-metal*-- Caalk batween wood^dr T^ta^. and masonry ^st all openings 1 O l ' 1 a " with aTidh-Hardeniilg ^ddalfcinf compound* .a; ir, ,, .-i ? .. '-JX.'C'-J U:i. "-a- .aX'Six.f *607-4.2 Head Flashing of Wall Openings IP a. Install sheet metal flashing extending from front edge of trim or lintel, up and over trim.or.lintel and.tip 2 in. behind sheathing paper, or behind-sheathing-when sheathing paper is omitted. For cavity and multi-wythe masonry vall3, flashing shall' extend into the inner wythe. For Wbod frame walls'; flashing on exterior shall be turned dawn over the drip cap... b. Head flashing, may be omitted' when the top of the window abutts'the soffit. In areas not subject to wind driven rain, head flashing may be omitted when vertical height between top of finish trim of opening and bottom of eave soffit is oneforthg p~contice projection or less. *607-4vl framb Fldiifaift a'~ * ` .* . - > ' .Forunsheathed wood frame walls, jambs shall be flashed with a 6 in', wide strip of metal, 3 oz copper-coated paper, 6 mil polyethylene or reinforced paper flashing complying with FS UU-B-790A. Paper shall not be exposed to weather at any point. Jamb flashing may be omitted when wood panel siding not requiring sheathing is used. i & SF 6-7-8 *Revised April 1977 BIRD 012860 I 4900.1 *607-4.4 Sill Flashing In masonry or masonry veneer walls. Install sill Clashing, extending from front edge of masonry, under masonry sill; up to underside of window sill and under window sill to inalde face of wall or Into rabbet in underside of window sill. 5111 flashing is not necessary when precast single piece sills are used. 607-4.5 Other Wall Openings a. Other openings or projections through exterior walls shall be made water tight. b. Ventilators located in exterior walls shall be flashed in sane manner as other openings, unless self-flashing metal ' ventilators, are used, or ventilator is, ins tailed directly \A .under ratat molding^'' .7," \iQj. , 607-^.65 Exterior tfall - Intersections offiDiffferent~Haterials ?Ins.tall sheet raetj^l,flashing^r^e^cealed flashing at. ali.% Vhorizontal an^ve^tfcatJ-nte^ec^lensi when exterior finiaS materiel does"hot provide"a Yelf-flashing joint. M .3 'J.'TTMDot* * ^ '*.1* r - ~ ^ b. All intersections-of^iitasohry with^other materials shall be caulked. ,, ,c _ - , . 1-e . 607-4.7 'Roof Valleys ........ , a. Rigid'Shingle Roof Covering ' (1) Install sheet metal flashing^as follows: Roof slope'' ' . Min. Width . Under 4 in 12------------------- ------------------------- 24 in. 4 in U to 7 in 12------------------ r--------------- 18 in. - J 7 in 12 and over------------ ----------- ----------------12 in. ' (2) Min. open valley width, 4 in, at top. Increase width . at rate of 1/8 in. per ft. Closed valleys shall not , . y. -J.be used on roofs with less than. 10 in 12 slope. Vs' * ' -EtJf `. i * wC w , -/ 4 SF 6-7-9 *Revised April 1977 BIRD 012861 4900.1 (3) When the adjacent roof surfaces are of different slopes or the area of one surface'is twice or more the area of the other surface draining to the valley, install a 1 in. crimp at center of. the valley to form a baffle rib or increase min. width of flashing at least 12 in. b. Asphalt Shingle Roof Covering (1) Install sheet metal same as a., above, or (2) Install two thicknesses of 1^85 mineral surfaced roll-roofing. Bottom stripTifiall be at least 18 in. wide; top strip, at least? 36 in. wide. (3) - One- thickness. of(^5^1B3snjp,oth surface- roll-roofing, 36; in. wide,, may/Bemused-with closed or woven asphalt strip shingle valley treatment. : ~.r i;:-, . *c. Built-up Roof Covering - :i . -.'S T v i- ' Valley,flashing is non required:for built-up roofs when , , roof membranet,.4?^.r^a^irefi.reinforcing. r,(s i9r!l; V ' 607-4.8 Hoof to Wall Intersections r.'i ^ * *a. When shingles are usedya& roof covering, sheet afital flashing shall extend at leasti^S/lnr. "Underi shingles andi^in.-. up wall, flashing installed in^step" "fashion, providing a 3 in. head- , lap or one piece.- flashing may bet used.: One piece flashing shall, not exceed:-6 ft: in .length including overlaps. b. In masonry walls, install counter-flashing at intersections. Embed top of.-counter-flashing 1 in. into masonry; extend down wall at. least' 6 in., lapping flashing a min. of 4 in. c. When built-up roofing is used*, flashing may be provided by mopping roofing directly onto wall provided cant strips and suitable counter-flashing are used. 607-4.9 Roof to Chimney Intersections ,-^a. r On sloping roofs, a chimne; die: shall be installed at .upper, side of all .chimneys __or more in widtty? - when not intersecting ridge. Cover, saddle with Sheet metal or roofing. If sheet metal is used, extend at least 6 *. in. under shingles. i 4 SF 6-7-10 ^Revised April 1977 BIRD 012862 4900.1 607-4.9 Continue' 1 b. When shingles are used as roof covering, sheet metal flashing andvccymter-flashing shall he installed at the int-ersection as required in. 607-4.8 a. and b. c. When saddle is not installed, flashing on high side of chimney shall extend up at least 4 in. on chimney and extend under shingles to a point equal in height to flash ing on chimney but not less than 1 1/2 times shingle exposure. Counter-flash in accordance with 607-4.8 b. ,d. When built-up roofing Id used;' flashing may be provided as ih 607-4.8c. - - e. For-chimneys-and1-vents; other than masonry, install metal flashing"to'ptovidewatertight joints. 607-4.10 Pipe Projecting Through Roof :io-S ka. Flash with one piece sheet metal flashing, one piece neoprene . - J x gaskets type- flashing or jtwo piece'- flange and sleeve flashlag. ::Flanges>shaH extebdP at leastrfi-" itfl on all sides but not lest than 1 1/2 times shingle exposure. I-<n IlsW o3 lo .l .. "Jd b. Counter-flash pipes or seal joints with mastic. * 607-4.ll-; Eave and?RakerFlashlh; C-- 'attJ-i _____ _ ; a; ; For-all^shl install r1W& a tlntiKI'nir Iran thnn '\ In 17. drlp edge' aiong-eaveS1 -hnd rake. Apply below underlay at eaves and over underlay at rake. to. For gravel-surfaced, built-up roofing^ install gravel stop at- eaves- and raker. Iti. areas, subject -to winds in excess of 90 mph. Joints in gravel stop shall be covered with a metal' cover plate. Cover plate shall 'be precisely pro filed to-' fit over gravel stopv 607-4.12 Porch and Entrance Platform Slab3 Provide sheet metal flashing where concrete slabs abut wood ; construction. Sheet metal shall extend from Inside face of foundation^Wall, across" top of-fOundatftra wall under sill .' <- plate; and'up at least 4 iiv. above cop "of- slab. SF 234-853 0-77- 12 6-7-H *Revised April 1977 BIRD 012863 4900.1 *607-4,13 Parapet Flashing -- - Where wall coping is not an impervious material with water tight joints, through Clashing shall be placed in mortar bed under coping. Flashing shall extend not less than 1/4 in. on both sides o wall and be turned down to form a drip when copings are flush with wall surfaces. Where copings furnish an adequate drip, flashing may stop at wall surface. 607-4.14 Spandrel Flashing - a. Provide continuous waterproofing at beams. Turn horizontal flashing 2 in. min. up on inner face of masonry wall. Two piece flashing, may be. used when pieces are* lapped 4 in. min. ' b. Reglets may be used to' receive flashing. c. Flash structural support for..exterior masonry facing. 607-4.15 d. Where cavity walls are supported,on.concrete spandrel beans, flashing shall be placed on shelf angle and extend 8 - - iii.^ up hesat te, corrosion-resistant reglet. " Base Flashing v _v: ;n.v:; / . ., _ , , Base flashing shall be corrosion-resistant sheet metal, 30 lb asphalt-saturated felt or membrane type flashing. Install flashing to extend from outside of wall under outer course, up between courses at least 4 in. and-embed In back-course. In single unit walls, extend.under wall and up on inside at least 4 in. under furring... *607-4.16 Miscellaneous Flashing Special flashing, such as .at- planter boxes, dormer windows, roof ventilators, etc., shall be provided. Details of flashing shall be acceptable to the dUD field office. A l A' i J- SF T&ii .W.. . tei-.`i? \ 6-7-12 *Revised April 1977 BIRD 012864 4900.1 DIVISION 3 60a DOORS. WINDOWSAND GLAZING 608-1 " DOOR PERFORMANCE - GENERAL- 1 Doors shall be durable and Installed In good operating condition, free of defects, -latching readily and locking securely. 608-2 EXTERIOR DOORS 608-2.1 Installation Doors shall be-iWtailed'to assure: adequate structural strength, weathertightness and shall be capable of resisting extremes of moisture, wind and temperature1. Doors1 shall he safe and assure reasonable economy with ease of maintenance. Caulk around frames with a rionhatdfening aealarft^--1 -7-' 608-2';2 Heitherstrihding^' .v- ,nv * . All exieriat5 dodtV shall3b%-> provided wdthr.ji tight threshold -f! and weatherstripping to reduce infiltration of undesirable out - door elements. ' Z's: - -"./a *608-2.3 Reserved ` .x 608-2.4 ttlsceilanldug `1 > 3 ' 1 7.1 -5 jF. ` ,> . 3 -s <:q2& far,;* Provide a safety door check on all doors, including storm and screen doors, opening outward-i ' - - A--i 608-3 DOOR FRAMES Install frames5,* plutrby rigid and in true alignment: properly brace until permanently set'. 608-4 WINDOWS 608-4.J, Installation Windows-shall be installed in accordance with the recommendations of the manufacturer. Operating hardware shall be Installed. V Catiik around frames with a nonhardening sealant. V-! M <> SF 6-8-1 *Revised April 1977 BIRD 012865 4900.1 609 >. DIVISION 9 finish materials *609-1 general Application of finish materials shall be such as to: prevent entrance or penetration of moisture or weather: provide adequate protection from damage by decay, corrosion, insects and other undesirable elements; and provide reasonable duraability, economy of maintenance-and'an attractive appearance. 609-2 EXTERIOR WALL- FINISHES-2 609-2.1 General '.""u: - a. Exterior wall finishes shall be_ ins tailed in a manner, td restrict the entrance oflmalsfture^ anif leather. ' Attachment . and/or anchorage of finish to backing or structure shall . p'be> adequate1 reslrffc? dfcslgir wini^iftocesr. ' Sfee 601-6. .. *\ 5- b. Use of brittle or otherwise easlSCjp^inJifiretf^exterior flniShi.'-S^ materials shall be restricted to 7 ft 0 in..or .more abwev ^ . : grade where large numbers of chdfdrWiraHrotiei'pated or : where the probability of damage to the exterior finish is eon^fe(il>le,.st*b 3" '"-.'is -*n "-'"job c. When sheathing is used for attachment of siding, see 605-5.4 and Table 6-6.5. G09-2.2 Wood Siding, Hardlfdard, Plywood13*-' a.- Wood;sidng8 -shall be? applied with corrosiorf resistant " nails''which will'penetrate Jr in; into studs, blocking or wood sheathing. ;**.*- ^ o b. Headlap shall be adequate to prevent entrance of moisture " into walls.- 3 ,i) . : it /-.is:. i 'J ~ ; ..i.j . c. . Butt j&lnts of horizontal sidings shall occur over studs, ' ' .except where wood sheathing is used. Joints in adjacent pieces shall be staggered-; w'` "* -' d. Wax, spacing of studs or blocklug shall be 24 in. except that for 3/8 in. plywood and all hardboard, spacing shall be 16 in. when sheathing is omitted. SF 6-9-1 *Revised July 1974 BIRD 012866 4900.1 /?- 60 8-4 Weatheratrlppiag Weatherstrip windows to reduce Infiltration of undesirable- outdoor elements. 608-4.3 Screens Install screens on openable windows in those areas where window, screens are customarily provided. . 608-4.4 Window.Frame. Anchorage . u Anchor windows at heads, sills., mulLiops, and jambs with, standard or special anchors as required. 608-5 GLAZING ", - . ^ *1 - *. V i 608r5..1 Installation. Standards,. ,... -* - ** ` - .'-.jzzi . -S I*. . *O.V ~ .' Glazing. shaljl conipj.y^itiiBthe. ijHtes:t _Fiafe Gla33 Marketing Association's manuals: Glazing Manual and Glazing Sealing * - . Sya.tfflffi .Honored; >iv?3n~o "3 j .7 /, d :lo . .j 1-. . ;l 0 i '1 b333il33;n =: ZLUr 66 8-5".2 Glass, Clearances . ,,3,^,, ,3^.; 7-:u *' / ' `3 ',, ``J tJ5 --\ .`>'3 Glass clearance dimensions: based tyvjsypeahd thickness of glass as determined by above manual, but In no case less than ..the, fallowing.;.. . = a,., *a. All four sides at perimeter edge of glass: Clearance equal to thickness, of glass* , -.5^ . . _ b. Sealer space between face of glass and fixed or applied .stops shall be sufficient;-to prevent_gl^ss-to-stop contact. 608-5.3 Surface Preparation .ir * j . i -'.r Surface must be dry and free of dust pt other foreign materials; clean sash sealing surfaces as recommended by sealant manufac- 'edifflb*' H^tAt .CURTAift WALLS* (See $05-5) a /* SF 6-8-2 Revised April-:1977 BIRD 012867 609-2.3 Wood Shakes and Shingles a. Wood shakes and shingles shall be applied with corrosion resistant nails over suitable wood sheathing or to furring strips over flberboard or gypsum sheathing. - b.' Shakes and shingles shall be coursed and lapped in a manner "to prevent the entrance of moisture. 609-2.4 Asbestos Cement Siding ~ . C- a. Application shall be over solid wood sheathing or over flberboard or gypsum sheathing where nailing strips or other special fastening methods are used. * ~b. Headlap shall be adequate to prevent entrance of moisture into wall. c. Use corrosion resistant nails of sufficient length to penetrate supporting material. -- .u, d. Caulk'all vertical joints where siding abutts other materials. e. Installation of flat sheet siding shall be in accordance with the Manual of Application Methods for Flat AsbestosCement sheets published by the Mineral Fiber Products Bureau. ' *609-2.5 Stucco (Exterior) -Preparation and application shall comply with ANSI A42.2 and A42.3. ' *609-2.6 Aluminum Siding a. Application shall conform to AAMA 1403.2, Installation Specifications for Residential Aluminum Siding. b. See 606-5.5 for sheathing paper requirements. SF 6-9-2 *Revised April 1977 \ 4900.1 609-2.7 Steel Siding Steel siding conforming to Table 5-7.1 shall be applied over solid sheathing in. accordance with the manufacturers specifi cations and the following: a. Siding shall be vented by clips or starter strips. b. J channels or L moldings shall be used at all openings and at extremity of any siding run where a corner is not employed. 609-3 ROOF COVERINGS 609-3.1 General a. Roof coverings shall restrict the entrance of moisture and weather, be resistant to deterioration, and provide an attractive appearance. Attachment and/or anchorage of covering to roof sheathing shall be adequate to resist design wind forces. See 601-6. All roofing materials shall be installed in accordance with the recommendations of the manufacturer unless otherwise indicated in these standards. Nailing ,. (1) Use corrosion resistant roofing nails suitable for the material being installed and ofySffffictent length to penetrate through sheathing aryl/2 in), into wood plank . decks. Where sheathing is low dtensity (specific gravity less than 0.45, oven thread or annular thread roofing nails Where plywood sheathing is used, naiis shall be as recommended by the manufacturers of the sheathing and roofing materials being installed. (2) Stapling may be used in areas which are not subject to high or {gjedium high. winds' (90 mph^ and shall comply with UM-25. 1 See foffJlnd areas. SF 6-9-3 *Revised April 1977 BIRD 012869 49Q0.1 T *d. In areas where the dutside desigu^fcemperature is 0 F or less and in areas where- icfe- nay-fCrnT along eaves'- and cause a backup of water eave protection shall be provided as . follows: Cl) Slopes 4 in 12 or more: When overhang is less than 36 in., provide either one course of 90 Ih mineral surfaced roll roofing, or one course of SO lb smooth roll roofing over the*, single underlay. Extend roll roofing a min. of 12 in. beyond inside face of wall. When overhang requires a roll roofing width greater than 36 in., the required horizontal laps shall be cemented and 'the*roll roofing shall"cover the underlay for all of that portion of the roof extending beyond the exterior wafll line." (2):- Slopes less than ' ih -12: For'overhangs of any 1 width, that portion 'Of the underlay extending from the eave to a point 24 in. beyond the interior wall : ..j. " face shall he-^doubie^arid "cermente<i.'''rA uniform con-' .. .. : . tinuOus -layer-of -filasi'tfc dspffai't Jceient shall he g ;: :appliie<l-4ith5a"cdn-irrowejpatr^a raire 'of 2 gals p*t' 100 sq ft to the surface of the underlay; starter*-; jff'^ , course "before tlid^first :frfltf'course^lis applied, >^.fr ^ - and also to tfie 19 ini' underlying poition of each . succeeding course within the eave protection area. e. Shingle Applications (1) A starting course providing'double thickness at eave shall be used. Shingles shall project over edge of sheathing at eave 'and rake1 to fdrm drip. (2) Individual shingles shall have at least two nails per shinglei " ' '(3)--Avoid vertical alignment' of - shingle joints in alter----- - date-courses.- 609~3.1 Asphalt Shingles 6 , o' V au.. provide at least double coverage at all points. Cutouts V;-,. - ''and spacing between shingles not id'excess of 3/4 in. may be disregarded in determining double'coverage. ftforC, b.-'` Exposure shall be as required for" CL Class C-label. c. Kin. roof slope and underlay shall comply with Table 6-9.1. SF 6-9-4 ^Revised April 1977 4900.1 TABLE 6-9.1 ' MINIMUM ROOF SLOPE AND- UNDERLAY FOR ASPHALT SHINGLES Underlay 15 lb 6 in. Kndlap Not required. Single, 2 in. Headlap. Double, 19 in. lieadlap. Minimum Roof Slope (in.) Double Coverage Trip^ Coverage Shingles Shingles 7 in 12 4 in X2 (1) 4 in 12 fif 3 in/l\(2) 2 in 12 2 in J2\ Notes:. C4-)., May be 3 In 12 for porch .rpafs,. (2) May be 2 In 12 for porjch copfst. d. Nails shall have deformed, barbed-or threaded shanks with heads not less than3/Sin, diameter. elL Square butt strip shingles; sh*!^. have at least four .1 nails pej^^rip except that,-.in -areas^subject to high witida_X9Q jnph) , provide-6 nail.-pqq strip. -;.i j.; `} .>a 'Al i~ .Each.shingle tah shal^fjbe secured to>-undercourse when roofing, is subject to pny pf thq following conditions: (1) Roof slopes less than 4 in 12. (2) All slopes subject to high or medium high winds C9Q mph) - _ . (3) All slopes In medium wind zone areas (80 mph), if shingles weigh less than 275 lbs per square^__ On roof s loots-.4 In 12 and above--farr-cw^or^BedlumClow wind^ zone areas O0 mph)), secure tabs of shingles as requi by Asphalt.RohfiSg Manufacturers Association's publication. Manufacture, Selection and Application of Asphalt Roofing and Siding Products. 609-3.3 Wood Shingles; -.;al ' Min.roqf slope 4 in 12 except porches which may be , 3,,in'12.\, b. Size, grade, thickness, exposure and slope shall comply with Table 6-9.2. SF 6-9-5 *Revised April 1977 BIRD 012871 TABLE' 6-9.2 WOOD SHINGLES Shingle Length and Face Grade- ______ .................. Minimum Thickness At Butt Maximum Exposure Cin.) Slopes Less than Slopes 4 in 12 4 in 12 (Porches) and Over 16 in. #1 16 in. #2 18rin. #1 18 in. #2 24 in. #1 24 in. #2 - 5 in 2 in. 5 in 2 in. : 5 in 2 1/4- in. 5 in' 2 1/4 in. 4' in 2 in. 4 in 2 in. 3 3/4 3 1/2 4 1/4 4 5 3/4= 5 1/2 5 4 5 1/2 4 1/2 7 1/2 6 1/2 _ Note: (IX See 509-3.3 far undejjcourse grades, c. Application " ... *(1> La5* approxiniate'iyEi/^"iiir apart with a min. aidelap^ Of l'i/2'in. in'adjacent courses. Avoid vertical . W'' >3 . . . alignment in alternates-courses. Double starter coufe.O y- ' (ZT> Underlay is not required excep.t ydierC; eave protection is necessary. See 609-3.idi'--' ------- (3) ' Nails shall be located 1 to 1 1/2 in. above the butt line, of the: following: course and approximately 3/4 in. from each edge. _ 609-3.4 Wood Shakes a. Min, roof slope, 4-in 12. b. Size, max. exposure and rain., thickness-shall comply with Table 6-9.3. *Table 6-9.3 * ,'. r`i_~ * . ... . Hand-split,fand resawn Tapersawn Tapersplit . S traight-split ' WOOD SHAKES Length ~ Minimum Thickness (in.) (in.). 18' 1/2 24 1/2 24 1/2 18 3/8 24 3/8 Maximum Exposure (in.) 7 1/2 IQ 10 5 1/2 7 1/2 SF 6-9-6 ^Revised April 1977 4900.1 \ c. Roof sheathing may be either spaced or solid, except that r solid sheathing shall be used in areas where wind driven snow is encountered. *d. Underlay (1) Between each course interlay an 18 in. wide layer of 15 lb or heavier asphalt-saturated felt with bottom edge positioned above shake butts a distance equal to double the weather exposure. End lap of underlay shall be at least 4 in. In areas where wind driven snow is not encountered, felt interlay is not required when 3traight-split or tapersplit shakes are applied at weather exposures lejssi than 1/3 the total shake length. (2) Install a_36 iiu-widfrr 15~Unairr. starter strip at eaves and a 12 in. wide, 15.1b min. strip over all hips and ridges; e. Application 't{ (1) Lay approximate^.1/4,,itu apart. v Provide 1 1/2 in. v i min; sidelap, ri?n. a d*jacen* t * courses. ^ Nail..each shake -1 2 'itr:r5above butts of the following, course and approximately. 1 in. from edges N 609"~3i. 5` Slate' Shingles a. Min. slope, 4 in 12,.. except porches- which may be 3 in 12. b', Max. exposlire and min. headlap shall comply with Table 6-9.4. TABLE 6-9.4 Roof Slope Over 6 in 12 6 in 12 or. under SLATE SHINGLES Maximum. Length of Minimum Exposure Slate Headlap (in.>"3 1/2 (in.) - * io (in.) 3 4 1/2 12 3 5 1/2 6 1/2 7 1/2 14 16 18 3 3 3 3 - ... io-- :;-t 4 12 4 . 5. 14 - * " \ 4 , 6 16 4 7. - - 18 ...... l\ l**. A I SF 6-9-7 *Revised April 1977 BIRD 012873 4900.1 c. Application (1) Install over 30 lb asphalt-saturated felt underlay. (2) Hip slates and ridge slates shall be embedded In plastic cement. (3) Exposed nail heads shall be covered with plastic cement. d. Hailing (1) Slates shall be pre-drllled or punched for nailing. (2) Hails shall be flat head slating nails.' 609-3.6, Asbestos Cement Shingles _ ___ _________ _ a Size, thickness max.. expos tire and min* - lap -sh all comply; * with ti^fallowing;* . u' :uu}',- ; TABLE 6-9.5 ,,ni ASBESTOS-CEMENT SHINGLES Type of Application Individual Unit Multiple Unit Dutch Lap Ranch Design' French Size (in.) & x. 16 9 x 18 14 x.30 16. x 16. 24 x 12 16 x 16 Thickness (in.) Minimum ^Eap (in.) Head Side 5/32 to 1/4 . 2 1/4 2 5/32 2 5/32 "3 5/32 3- 5732- 3 -2 2 ?=4 4 3 Maximum Exposure (in.) 7 8 6 12 x 13 20 x 9 13 x 13 b. Nailing., . .. ,,, (1) Nails shall have 3/8 in. heads. Jf- ' ' (Z)H Storm anchors used with Dutch lap or ranch design shingles shall be copper, aluminum or lead, approximately 3/4 in. long with flat base. c. Mid', roof slope and underlay shall be as shown in Table 6-9.6. SF 6-9-8 BIRD 012874 4900.1 TABLE 6-9.6 MINIMUM ROOF SLOPE AND UNDERLAY Minimum Roof Slope (in.) 3 in'12 4 in 12 Underlay (2 in. headlap) (4 in. sidelap) Double Double in areas where the outside design temperature is 0 F or less, sirtgle' in other areas, 5 in 12 or more Single d. Underlay shall :be 15 1b asphalt-Saturated'asbcsos roofing felt or 30 lb asphalt-satdrated organic felt. 609-3.7 Built-Up Roofing ` * ......i- a. Quantity o^Lmaterial's"and min.' ro'of slopes per square of built-up roofing on wood.Sheathing- or-deeks- shall--------- ----- comply-with Table 6-9.7. - " b.-' Materialaf- .................. _ ... .... --- (1) Bituminous materials shall comply with 509-3.2. (2) Aggregate shall be..clean, durable gravel',--crushed; ;* stone or air-cooled blast.furnace-slag-complying with ASTM D-1863. . -- , , ~ (3) " "Aggregate sized larger than 3/4 in. may be used but shall not be included in required weight. ft, SF 6-9-9 BIRD 012875 4900.X *TABLE 6-9.7 Roof Type Minimum and Maximum Roof Slope Asphalt (Type p and Aggregate Asphalt (Type II) and Aggregate Coal Tar Pitch (Type I) and' Aggregate Asphalt (Type II) and- Cap Sheet 1/4 in 12 to . 1 in 12 1 in 12 to 3 in 12 1/4 in 12 to 1/2 in 12 (3) 2 in 12 to .6,1a. 12. BUILT-UP* ROOFING Bitumen Per Square Average Minimum Minimum Mopping Flood Total Coats Coat Bitumen Surfacing Per Square 15-20 lbs 60 lbs 105 lbs 400 lbs gravel or Asphalt Asphalt Asphalt crushed rock or (1) (1) (1) 300 lbs slag on .level roof. 300 15-20 lbs 50 lbs 95 lbs lbs gravel or Asjdialt Asphalt Asphalt crushed rock or (2) C2)-' (2)'* 225 lbs slag at 3 in 12 roof slope. 20-25 lbs 75 lbs 135. lbs Proportional weight Pitch Pitch Pitch,. for intermediate *. fj - " i J - 'I roof slope fr 15-20 lbs None :,45rlbsf, 19'* selyage, " >ty Asphalt (2)>/.-; ' "Asphalt'" "double coverage,;,- . jV 'mineral surfadd ; .'llUt' cap sheet ' Notes: (1) Use 160 F to 18Q F asphalt * (2) Use 180 F to 200 F steep roof asphalt. (3) Slopes less than 1/4 in 12 are acceptable when roof is designed and constructed to avoid ponding and excessive deflection. c. Application--Wood Decks (1) If underside of roof deck is finished ceiling surface, install one layer of unsaturated building paper over entire .reef deck. Min. headlap, 2 in. *(2) Apply two dry plies of 15 lb felt or one dry ply of ... 30 lb felt, and three plies of 15 lb felt mopped down and mopped together. Over entire surface, apply a uni- form .flood coat of bitumen'and embed surfacing aggregate. '.r *(3) A '19" selvage, mineral surfaced, roll roofing cap sheet may be used when Installed.over 2 mopped plies of No. 15 felt. (4) Install metal gravel 3top over dry or mopped sheets at eaves and rake. (5) Where roofing serves as flashing at intersections of walls or chimneys. Install cant strips and turn up roofing felts at least 4 in. Mop felts to intersections. SF 6-9-10 `Revised April 1977 BIRD 012876 4900.1 d> Application---- Concrete Deck Installation.shall be four plies of 15 lb roofing felt . . mopped down and mopped together. Weight of moppings and flood coat and weight of aggregate shall be same as for application to wood decks. e. Application---- Fiberboard Insulating Roof Deck Comply with 506-2.6a, 606-5.4 and Table 6-6.5. In areas subject to high winds, special nails shall be used. *609-3.8 Roofing Tile . a. Concrete roofing tile shall comply with the material and Installation requirements of U'i 17, Concrete Roofing Tile. b. Clay roofing tile, shall comply with the UUD field office requirements. Installation shall conform to manufacturer's recommendations. c Special application methods may be required by the UUD field office in areas subject to high winds._ *609-3.9 Metal- Roofing '" t? Install over solid sheathing. Installation of standing of batten seam roofing shall be in accordance..With Alhminum S, Sheet" Metal Work in Building Construction issued by AA or* with Architectural Sheet Metal Manual issued by SMACMA. b. 15 Lb asphalt-saturated felt underlay shall be installed over entire roof surface. c. Minimum roof slope: (1) Aluminum shingles; 4 in 12. (2) Large sheets: (a) Standing or lock seam, 3 in 12. (b)- Corrugated or crimped type with lapped seams, 3 in 12. . d. ........... Minimura.-Lap (1} ' Cdihrugated or'erimped type with lapped seams, 6 in. . headlap and 1 1/2 corrugations sidelap. (2) . Aluminum shingles, 6 in, headlap and cndlap. e. For zinc-copper alloy roofing, underlayment of vapor barrier building paper shall comply with FS W-P-147, Class C or better. Asphalt saturated feLt or "breathing" paper shall not be used. SF 6-9-11 *Revised April 1977 * BIRD 012877