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Home My WebLink About09 21 16 Gypsum Board Shaft Wall AssembliesTHE KENT 09 21 16- THE KENT Issue Date 05.09.18 GYPSUM BOARD SHAFT WALL ASSEMBLIES THE KENT SECTION 09 21 16 - 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 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section includes gypsum board shaft wall assemblies. 1.3 ACTION SUBMITTALS A. Product Data: For each component of gypsum board shaft wall assembly. 1.4 DELIVERY, STORAGE, AND HANDLING A. Store materials inside under cover and keep them dry and protected against weather, condensation, direct sunlight, construction traffic, and other potential causes of damage. Stack panels flat and support them on risers on a flat platform to prevent sagging. 1.5 FIELD CONDITIONS A. Environmental Limitations: Comply with gypsum-shaft-liner-board manufacturer's written instructions. B. Do not install finish panels until installation areas are enclosed and conditioned. C. Do not install panels that are wet, moisture damaged, or mold damaged. 1. Indications that panels are wet or moisture damaged include, but are not limited to, discoloration, sagging, and irregular shape. 2. Indications that panels are mold damaged include, but are not limited to, fuzzy or splotchy surface contamination and discoloration. THE KENT 09 21 16- THE KENT Issue Date 05.09.18 GYPSUM BOARD SHAFT WALL ASSEMBLIES THE KENT PART 2 - PRODUCTS 2.1 PERFORMANCE REQUIREMENTS A. Fire-Resistance-Rated Assemblies: For fire-resistance-rated assemblies, provide materials and construction identical to those tested in assembly indicated according to ASTM E 119 by an independent testing agency. B. STC-Rated Assemblies: Provide materials and construction identical to those of assemblies tested according to ASTM E 90 and classified according to ASTM E 413 by a testing and inspecting agency. C. Recycled Content: Postconsumer recycled content plus one-half of pre-consumer recycled content not less than 25 percent. 2.2 GYPSUM BOARD SHAFT WALL ASSEMBLIES A. Fire-Resistance Rating: As indicated. B. STC Rating: 51, minimum. C. Gypsum Shaftliner Board: 1. Moisture- and Mold-Resistant, Fiberglass-Mat Faced: ASTM C 1658; manufacturer's proprietary fire-resistive liner panels with ASTM D 3273 mold-resistance score of 10 as rated according to ASTM D 3274, 1 inch thick, and with double beveled long edges. a. Products: 1) Georgia-Pacific DENSGLASS Shaftliner 2) National Gypsum Gold Bond EXP Shaftliner. 3) USG Sheetrock Brand Mold Tough gypsum liner panels. D. Non-Load-Bearing Steel Framing, General: Complying with ASTM C 645 requirements for metal unless otherwise indicated and complying with requirements for fire-resistance-rated assembly indicated. 1. Protective Coating: ASTM A 653, G40, hot-dip galvanized unless otherwise indicated. E. Studs: Manufacturer's standard profile for repetitive, corner, and end members as follows: 1. Depth: As indicated. 2. Minimum Base-Metal Thickness: As indicated. F. Runner Tracks: Manufacturer's standard J-profile track with manufacturer's standard long-leg length, but at least 2 inches long and matching studs in depth. 1. Minimum Base-Metal Thickness: Matching steel studs. G. Firestop Tracks: Top runner manufactured to allow partition heads to expand and contract with movement of the structure while maintaining continuity of fire-resistance-rated assembly indicated; in thickness not less than indicated for studs and in width to accommodate depth of studs. THE KENT 09 21 16- THE KENT Issue Date 05.09.18 GYPSUM BOARD SHAFT WALL ASSEMBLIES THE KENT 1. Products: a. ClarkDietrich; BlazeFrame firestop Deflection Track. b. FIRETRAK; FIRETRAK Deflection Track and Fire Stop System. H. Elevator-Hoistway-Entrance Struts: Manufacturer's standard J-profile jamb strut with long-leg length of 3 inches, matching studs in depth, and not less than 0.033 inch thick. I. Finish Panels: As indicated. J. Sound Attenuation Blankets: Refer to Specification Section 07 21 00 “Thermal Insulation.” 2.3 AUXILIARY MATERIALS A. General: Provide auxiliary materials that comply with shaft wall manufacturer's written instructions. B. Trim Accessories: Cornerbead, edge trim, and control joints of material and shapes as specified in Section 09 29 00 "Gypsum Board" that comply with gypsum board shaft wall assembly manufacturer's written instructions for application indicated. C. Steel Drill Screws: ASTM C 1002 unless otherwise indicated. D. Track Fasteners: Power-driven fasteners of size and material required to withstand loading conditions imposed on shaft wall assemblies without exceeding allowable design stress of track, fasteners, or structural substrates in which anchors are embedded. 1. Expansion Anchors: Fabricated from corrosion-resistant materials, with allowable load or strength design capacities calculated according to ICC-ES AC193 and ACI 318 greater than or equal to the design load, as determined by testing per ASTM E 488 conducted by a qualified testing agency. 2. Power-Actuated Anchors: Fastener system of type suitable for application indicated, fabricated from corrosion-resistant materials, with allowable load capacities calculated according to ICC-ES AC70, greater than or equal to the design load, as determined by testing per ASTM E 1190 conducted by a qualified testing agency. E. Reinforcing: Galvanized-steel reinforcing strips with 0.033-inch minimum thickness of base metal (uncoated). F. Acoustical Sealant: Section 07 92 19 "Acoustical Joint Sealants." PART 3 - EXECUTION 3.1 EXAMINATION A. Examine substrates and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of the Work. B. Examine panels before installation. Reject panels that are wet, moisture damaged, or mold damaged. THE KENT 09 21 16- THE KENT Issue Date 05.09.18 GYPSUM BOARD SHAFT WALL ASSEMBLIES THE KENT C. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 PREPARATION A. Sprayed Fire-Resistive Materials: Coordinate with gypsum board shaft wall assemblies so both elements of Work remain complete and undamaged. Patch or replace sprayed fire-resistive materials removed or damaged during installation of shaft wall assemblies to comply with requirements specified in Section 07 81 00 "Applied Fireproofing." B. After sprayed fire-resistive materials are applied, remove only to extent necessary for installation of gypsum board shaft wall assemblies and without reducing the fire-resistive material thickness below that which is required to obtain fire-resistance rating indicated. Protect remaining fire-resistive materials from damage. 3.3 INSTALLATION A. General: Install gypsum board shaft wall assemblies to comply with requirements of fire- resistance-rated assemblies indicated and manufacturer's written installation instructions. B. Do not bridge building expansion joints with shaft wall assemblies; frame both sides of expansion joints with furring and other support. 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, wall-mounted door stops, and similar items that cannot be supported directly by shaft wall assembly framing. 1. Elevator Hoistway: At elevator hoistway-entrance door frames, provide jamb struts on each side of door frame. 2. Reinforcing: Provide where items attach directly to shaft wall assembly as indicated on Drawings; accurately position and secure behind at least one layer of face panel. D. Penetrations: 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 and floor indicators, and similar items. E. Isolate perimeter of gypsum panels from building structure to prevent cracking of panels while maintaining continuity of fire-rated construction. F. Firestop Tracks: Where indicated, install to maintain continuity of fire-resistance-rated assembly indicated. G. Control Joints: Install control joints according to ASTM C 840 and in specific locations approved by Architect while maintaining fire-resistance rating of gypsum board shaft wall assemblies. H. Sound-Rated Shaft Wall Assemblies: 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. THE KENT 09 21 16- THE KENT Issue Date 05.09.18 GYPSUM BOARD SHAFT WALL ASSEMBLIES THE KENT I. Installation Tolerance: Install each framing member so fastening surfaces vary not more than 1/8 inch from the plane formed by faces of adjacent framing. 3.4 PROTECTION A. Protect installed products from damage from weather, condensation, direct sunlight, construction, and other causes during remainder of the construction period. B. Remove and replace panels that are wet, moisture damaged, or mold damaged. 1. Indications that panels are wet or moisture damaged include, but are not limited to, discoloration, sagging, and irregular shape. 2. Indications that panels are mold damaged include, but are not limited to, fuzzy or splotchy surface contamination and discoloration. END OF SECTION 09 21 16