ONE SCHOOL STREET SEPTEMBER 18, 2008 GOWANDA, NEW YORK ARCH PROJECT NO

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1 SECTION GYPSUM BOARD SHAFT-WALL ASSEMBLIES PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes the following: 1. Fire rated partitions and Shaft enclosures. B. Related Sections include the following: 1.3 DEFINITIONS 1. Division 9 "Gypsum Board" for applying and finishing panels in gypsum board shaft-wall assemblies. A. Gypsum Board Construction Terminology: Refer to ASTM C 11 and GA-505 for definitions of terms for gypsum board construction not defined in this Section or in other referenced standards. 1.4 SUBMITTALS A. Product Data: For each gypsum board shaft-wall assembly specified. B. Fire-Test-Response Reports: From a qualified independent testing and inspecting agency substantiating each gypsum board shaft-wall assembly's required fire-resistance rating. 1.5 QUALITY ASSURANCE A. Source Limitations: Obtain components for each gypsum board shaft-wall assembly indicated through one source from a single manufacturer. B. Fire-Resistance-Rated Assemblies: Provide gypsum board shaft-wall assemblies as follows: 1. Assemblies comply with requirements of fire-response-tested assemblies indicated by GA File Numbers in GA-600, "Fire Resistance Design Manual"; or design designations in UL's "Fire Resistance Directory" or certification listings of Warnock Hersey or another testing and inspecting agency acceptable to authorities having jurisdiction. GYPSUM BOARD SHAFT-WALL ASSEMBLIES

2 1.6 DELIVERY, STORAGE, AND HANDLING A. Deliver materials in original packages, containers, and bundles bearing brand name and identification of manufacturer or supplier. B. Store materials inside under cover and keep them dry and protected against damage from weather, direct sunlight, surface contamination, corrosion, construction traffic, and other causes. Neatly stack gypsum boards flat on leveled supports off the ground to prevent sagging. 1.7 PROJECT CONDITIONS A. Comply with requirements for environmental conditions, room temperatures, and ventilation specified in the following Division 9 Section: PART 2 - PRODUCTS 1. "Gypsum Board". 2.1 MANUFACTURERS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following manufacturers: 1. Steel Framing and Furring: a. Clark Steel Framing, Inc. b. Consolidated Systems, Inc. c. Dale Industries, Inc. d. Dietrich Industries, Inc. e. Marino/Ware (formerly Marino Industries Corp.). f. National Gypsum Co.; Gold Bond Building Products Division. g. Unimast, Inc. 2. Gypsum Board and Related Products: a. Domtar Gypsum. b. Georgia-Pacific Corp. c. National Gypsum Co.; Gold Bond Building Products Division. GYPSUM BOARD SHAFT-WALL ASSEMBLIES

3 2.2 ASSEMBLY MATERIALS d. United States Gypsum Co. A. General: Provide materials and components complying with requirements of fireresistance-rated assemblies Provide panels in maximum lengths available to eliminate or minimize end-to-end butt joints. B. Steel Framing: ASTM C Protective Coating: ASTM A 653, G40 (ASTM A 653M, Z120) hot-dip galvanized coating. 2. Studs: Manufacturer's standard profile for fire-resistance-rated assembly indicated and in depth and thickness indicated in the Gypsum Board Shaft-Wall Assembly Schedule. 3. Track (Runner): Manufacturer's standard J-profile track with long-leg length as standard with manufacturer, but at least 2 inches (50.8 mm), in depth matching studs and in thickness indicated in the Gypsum Board Shaft-Wall Assembly Schedule. 4. Jamb Struts: Manufacturer's standard J-profile strut with long-leg length of 3 inches (76.2 mm), in depth matching studs, and not less than inch (0.84 mm) thick. 5. Corner and End Members: Manufacturer's standard profile framing member for use at corners or where assembly terminates at other work, in depth matching studs and in manufacturer's standard thickness not less than the stud thickness indicated in the Gypsum Board Shaft-Wall Assembly Schedule. C. Gypsum Liner Panels: Manufacturer's proprietary liner panels in 1-inch (25.4-mm) thickness and with moisture-resistant paper faces. D. Gypsum Wallboard: ASTM C 36, core type as required by fire-resistance-rated assembly 1. Edges: Tapered. E. Accessories: Cornerbead, edge trim, and control joints of material and shapes specified in Division 9 Section referenced below that comply with gypsum board shaft-wall assembly manufacturer's written recommendations for application 1. "Gypsum Board". F. Gypsum Wallboard Joint-Treatment Materials: Provide materials complying with GYPSUM BOARD SHAFT-WALL ASSEMBLIES

4 ASTM C 475 and gypsum board shaft-wall assembly manufacturer's written recommendations for applications indicated, and as specified in Division 9 Section "Gypsum Board Assemblies." 2.3 MISCELLANEOUS MATERIALS A. General: Provide auxiliary materials for gypsum board shaft-wall construction that comply with requirements indicated and gypsum board shaft-wall assembly manufacturer's written recommendations. B. Steel drill screws complying with ASTM C 1002 for fastening gypsum board to steel members less than 0.03 inch (0.76 mm) thick. C. Steel drill screws complying with ASTM C 954 for fastening gypsum board to steel members from 0.03 to inch (0.76 to 2.84 mm) thick. D. Runner (Track) Fasteners: Power-driven fasteners of type indicated below and of size and material required to withstand loading conditions imposed on shaft-wall assemblies without exceeding allowable design stress of runners, fasteners, or structural substrates where anchors are embedded. 1. Powder-Actuated Fasteners: Provide powder-actuated fasteners with capability to sustain, without failure, a load equal to 10 times that imposed by shaft-wall assemblies, as determined by testing conducted by a qualified independent testing agency according to ASTM E Postinstalled Expansion Anchors: Where indicated, provide expansion anchors with capability to sustain, without failure, a load equal to 5 times that imposed by shaft-wall assemblies, as determined by testing conducted by a qualified independent testing agency according to ASTM E 488. E. Acoustical Sealant: As recommended by gypsum board shaft-wall assembly manufacturer for application F. Sound-Attenuation Blankets: Unfaced mineral-fiber-blanket insulation produced by combining mineral fibers of type described below with thermosetting resins to comply with ASTM C 665 for Type I (blankets without membrane facing): PART 3 - EXECUTION 3.1 EXAMINATION 1. Mineral-Fiber Type: As required to comply with fire-resistance-rated assembly A. Examine substrates to which gypsum board shaft-wall assemblies attach or abut, with GYPSUM BOARD SHAFT-WALL ASSEMBLIES

5 3.2 INSTALLATION Installer present. Substrates include hollow-metal frames, elevator hoistway door frames, cast-in anchors, and structural framing; examine for compliance with requirements for installation tolerances and other conditions affecting performance of gypsum board shaftwall assemblies. Do not proceed with installation until unsatisfactory conditions have been corrected. A. General: Install gypsum board shaft-wall assemblies to comply with requirements of fireresistance-rated assemblies indicated, manufacturer's written installation instructions, and the following: 1. ASTM C 754 for installing steel framing. 2. Division 9 Section "Gypsum Board" for applying and finishing gypsum wallboard and other panels B. Do not bridge building expansion joints with shaft-wall assemblies; frame both sides of joints with furring and other support as C. Install supplementary framing in gypsum board shaft-wall assemblies around openings and as required for blocking, bracing, and support of gravity and pullout loads of fixtures, equipment, services, heavy trim, furnishings, and similar items that cannot be supported directly by shaft-wall assembly framing. D. At penetrations in shaft wall, maintain fire-resistance rating of shaft-wall assembly by installing supplementary steel framing around perimeter of penetration and fire protection behind boxes containing wiring devices, elevator call buttons, elevator floor indicators, and similar items. E. Isolate shaft-wall assemblies from building structure to prevent structural movement from transferring loads to shaft-wall assemblies. F. Install control joints at locations indicated to maintain fire-resistance rating of assembly G. Seal gypsum board shaft-walls with acoustical sealant at perimeter of each assembly where it abuts other work and at joints and penetrations within each assembly. Install acoustical sealant to withstand dislocation by air-pressure differential between shaft and external spaces; maintain an airtight and smoke-tight seal; and comply with manufacturer's written instructions or ASTM C 919, whichever is more stringent. 3.3 PROTECTION A. Provide final protection and maintain conditions, in a manner acceptable to Installer, that ensure gypsum board shaft-wall assemblies are without damage or deterioration at the time GYPSUM BOARD SHAFT-WALL ASSEMBLIES

6 of Substantial Completion. 3.4 GYPSUM BOARD SHAFT-WALL ASSEMBLY SCHEDULE A. Gypsum Board Shaft-Wall Assembly: Provide assembly s complying with the following: 1. Fire-Resistance-Rated Assembly: As indicated, using products by manufacturer s listed in Part 2 of this Section and finished in accordance with requirements in Division 9, Section Gypsum Board. 2. Deflection Limit: L/ Stud Depth: As 4. Stud and Track Base Metal Thicknesses: Provided manufacturer's standard thicknesses that comply with structural performance requirements for stud depth 5. Room-Side Finish: As 6. Shaft-Side Finish: As indicated 7. Cavity Insulation: Provide sound-attenuation blankets in cavity formed by studs between shaft-wall liner panels and room-side finish. END OF SECTION GYPSUM BOARD SHAFT-WALL ASSEMBLIES