Document MG7o0p0dzdpV3B9Kp5b6RGJz9

.I 2 %; t- / \ Product,Description SOUND-SHZELD "85r, a mill-controlled bicod of refined mineral fiber and proprietary binders, answers an industry need -foe a harden, whiter, spray-applied ceiling finish providing predictable acoustical performance. Applied in thin texture coats or l/2m thick acoustical finishes to concrete, gypsum board, metal gnd gypsum lath, or galvanized steel* bases in .accordance with application recommeodauons. SOUND>SHJELD "85" surpasses the . r performance characteristics of most 'spray or trowel-app acoustical ceiling materials.'A member of the interuation accepted CAFCO product family, SOUND-SHIELD " offers maximum value from the five basic requiremi for acoustical finish materials -- hardness.' sound abst .tion. fire resistance, light reflectivity, and uniformity texture. - Advantages i4 ' SOUND ABSORPTION -- Providing a-noise reduction coefficient (NRC) of .85 when applied thick to metal \ lath. SOUND-SHIELD "85" is formulated to assure the specifier of predictable acoustical performance. Darbying. suppling, perforating and other conventional finishing methods which often adversely affect the field performance and appearance of acoustical plasters, are eliminated. FIRE RESISTANCE -- Tested by an industry recognized, independent laboratory in accordance with methods and . procedures established by Federal Specification SS-A-I18B. SOUND-SHIELD "85" meets'the fire resistance require ments for Class "A" acoustical materials. ADAPTABILITY --To meetzhe requirements of modem dav architectural and acoustical design. SOUND-SHIELD "85" has been formulated for application to most mono lithic concrete, precast and prestressed concrete, galvanized steel, and metal or gypsum lath ceiling base systems. Free- formed concrete structures are- readily sound conditioned- in a continuous, monolithic coating, eliminating costly application techniques and alignment, problems associated with preformed acoustical products. Long-term liboratory tests nave established bond strengths as higb as 250# . per square foot. , EXTRA HARDNESS -- SOUND-SHIELD "85" redi damage susceptibility often associated with soft, sp: applied acoustical .finishes. Laboratory ` tests revea penetrometer hardness of 400 to 500 psi for a Vi" p< tration with a 0.05 square inch needle. DURABILITY -- SOUND-SHIELD "85" has been j jected to typical conditions of structural movement, flex freezing and thawing, wetting and drying, humidity condensation, and vibration. All test* results prove SOUND-SHIELD "85" may be subjected to normal ap cation abuse without loss of integrity. STAINING AND DISCOLORATION -- Many com tional. acoustical plaster-type products are subject to discoloration when applied in oormai thicknesses to posed metal lath and other metallic surfaces: the fibt composition of SOUND-SHIELD "85" filters out panicles and eliminates similar discoloration problems. INSULATION EFFICIENCY -- A *A" thickness SOUND-SHIELD "85" provides bonus insulation va Tested in accordance, with ASTM designation C-* SOUND-SHIELD "85" provides a "k" factor of ( at 75*F. ^MINIMUM CONCRETE FINISHING COSTS--Today'* ,, EASE OF APPLICATION -- SOUND-SHIELD ** /restresied, precast or *poured-in-place' concrete rpoi sur- may be applied to most bases to a fuji A 7 thicknes faces require expensive buffing.-Tubbmg, chipping pr other * ",tme .pass of the scaffold without .troweling, darbytnj Jnithing treatments; a'texture coal of. SOUND4HIELD * : finishing. - Prying time delays,between boats aje elimiria . *85" minimizes concetg finishing work* and provides two f . .the need for jqo humidity stabilization is eliminated; job bonuses-- a'distinctive fimshand high ligty reflectivi^ finished acoustical , ceiling ^s.-complete^! ,jan schedule. x Application Equipment i . .cntt'nji p!j>:or mixing. pumpnc and spraying equipment is readily t' SOIAD-SHIELD "85" application. Experienced contractors t the Ln:ied States and Canada know the technique necessary 4( a unitormfv textured, acoustical ceiling finish. The dust-free. .!. . ..rplication require*, a minimum of skill and assures the specifier .;rpv.xrance and performance. TABLE I \ * SOUND ABSORPTION & LIGHT REFLECTION r' * iV rfw" W# c9u:t -- :;! * cotrnciCKTs 1 as | :so soo 1000 2000 toon iipn NC Rentetion i.-UHD SHIELD "85 ir Vetai Lath 25 ti .98 .59 .95 .86 .85 70% SuflS "85 fc'id 03 I? .50 .79 .84 .78 .60 70% "j. .2f:a SOUND SHIELD* % lv<:a *i" -6 55 75 8t 85 87 80 71% ^ s-ju*c 29 t 45 76 9 qq SO 71% * as*v: a;)*:* ussfitontv !* out: :> ttiKtu u.n trt ::v'c"f3 Dj> Ott'tt TABLE II LATH TYPES ANO SPACING OF SUPPORTS .NIMUM WEIGHT OF METAL LATH H8S SQ.YO.) MAXIMUM SPACING Of SUPPORTS (IN.) 3.4 ]6" (wood) 34 13U" (metal) 275 16" (wood) j*h 2 75 12" (metal) 3.4 19" " Pcsath 3.4 24" 4.0 24" 1 Gypsum Lath 1 l/7~ GvOSum Rftarrt -- 16" 16" *' i -- uthmj JODiictt'Oflt wan toao-w ftccmmewdtttwn of lath manufacturer. architectural specifications Genera! Scope -- This section shall include all materials, CQuipme labor necessary for the machine application of acoustical (Option-texture coat finishi in accordance with specific drawings and terms and conditions of contract document: Contractor's Qualifications -- Work shall be executed in accordance with application recommendations establish Columbia Acoustics and Fireproofing Company and the con: shall be approved for this type of work by the manufactur Samples -- The contractor shall submit samples in acco with tne general conditions of the contract documents. S< shall be prepared for texture approval prior to commenc of work. c Guarantee -- The: contractor shall guarantee all materia1 workmanship for the period of one year from the comf of installation. Work of Other Sections Examination of Existing Work -- The contractor shall exam work prepared by others which is to receive the work c section and report in -writing to the general contractor a ditions not acceptable for commencement of work. Comr ment of work constitutes acceptance of the surface prepa others Utilities -- Ventilation, heat, light, electric power and shall provided by others. Preparation ---6ase surfaces and all attachments to surfaces, as covered by other sections of these specific, are to be placed by other contractors prior to commenc of work covered by'this section. A* ciferia!^ Finish -- Acoustical finish :0pt'on texture coat finish) m shall be SCUNQ'-SHlELD "85" as manufactured by Co Acoustics and Fireproofing Company and shall be suppl the ;;p site m properly marved. sealed paper bags. Water -- Shall be dean, fresh and free from mine c'car-c materials which affect the application, set ant fcrrarce of SOUND-SHIELD *85". .N ` t''c* ir.-t ion Job Conditions -- Appi-cato?* shall be started om>- a`t c:^t'a::cr is satisfied surface conditions are acceptable laces sna'i be reasonably clean ana free of dirt, greas loose ciaster. rust scale, pam: or other conditions whip) tc cre.ent good adheson Weather, temperature, vent and C'vmg conditions snail fohow retirements as set fc tne "American Standard Specifications for Gypsum Plastc Application Equipment -- Conventional plaster mixing. pu; and spraying equipment, as recommended and approv Cc -mpia Acoustics and Fireproofing Company, shall be A'.pltcafion Acoustical Finish -- SOUNO-SHIELD "85" Shan be n applied to a full *:" tft'Ckness in one application to -hi surface in accordance with the manufacturer's recommend, (option- Jexture Coat Finish -- SOUNO-SHfELO "85" sb machine applied in one application to a thickness suffice, conceal the base surface. Cleaning Upon completion of work, the contractor shall clean all d< from adjoining-wall and floor surfaces upon which ove has been deposited.