2020-598-E AMS-Muter Construction Europa upfit SDC

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DSS Skills Development Center Smith Sinnett / 2020045 Chapel Hill, North Carolina Orange County GYPSUM BOARD 09 29 00 - 7 F. Install panels with face side out. Butt panels together for a light contact at edges and ends with not more than 1/16 inch of open space between panels. Do not force into place. G. Locate edge and end joints over supports, except in ceiling applications where intermediate supports or gypsum board back-blocking is provided behind end joints. Do not place tapered edges against cut edges or ends. Stagger vertical joints on opposite sides of partitions. Do not make joints other than control joints at corners of framed openings. H. Form control and expansion joints with space between edges of adjoining gypsum panels. I. Cover both faces of support framing with gypsum panels in concealed spaces (above ceilings, etc.), except in chases braced internally. 1. Unless concealed application is indicated or required for sound, fire, air, or smoke ratings, coverage may be accomplished with scraps of not less than 8 sq. ft. in area. 2. Fit gypsum panels around ducts, pipes, and conduits. 3. Where partitions intersect structural members projecting below underside of floor/roof slabs and decks, cut gypsum panels to fit profile formed by structural members; allow 1/4- to 3/8-inch- wide joints to install sealant. J. Isolate perimeter of gypsum board applied to non-load-bearing partitions at structural abutments, except floors. Provide 1/4- to 1/2-inch- wide spaces at these locations, and trim edges with edge trim where edges of panels are exposed. Seal joints between edges and abutting structural surfaces with acoustical sealant. K. Attachment to Steel Framing: Attach panels so leading edge or end of each panel is attached to open (unsupported) edges of stud flanges first. L. Space fasteners in gypsum panels according to referenced gypsum board application and finishing standard and manufacturer's recommendations. 1. Space screws a maximum of 12 inches o.c. for vertical applications. 3.6 APPLYING INTERIOR GYPSUM BOARD A. Install interior gypsum board in the following locations: 1. Regular Type: As indicated on Drawings. 2. Type X: Install in Shower Rooms and behind Wet Areas. 3. Type C: Where required for specific fire-resistance-rated assembly indicated. B. Single-Layer Application: 1. On ceilings, apply gypsum panels before wall/partition board application to greatest extent possible and at right angles to framing, unless otherwise indicated. 2. On partitions/walls, apply gypsum panels vertically (parallel to framing), unless otherwise indicated or required by fire-resistance-rated assembly, and minimize end joints. a. Stagger abutting end joints not less than one framing member in alternate courses of panels. 3. On Z-furring members, apply gypsum panels vertically (parallel to framing) with no end joints. Locate edge joints over furring members. 4. Fastening Methods: Apply gypsum panels to supports with steel drill screws. 3.7 GYPSUM SHEATHING INSTALLATION A. General: Install sheathing board according to manufacturer's instructions and GA-253 "Application of Gypsum Sheathing." Cut boards at penetrations, edges, and other obstructions of the work, fit tight against abutting construction, except provide a 3/8" setback where non-load bearing elements abut structural elements. Coordinate sheathing with flashing and joint installation so these materials are installed in sequence and manner that prevent moisture from passing through the completed exterior wall assembly, apply fasteners so screw heads bear tightly against face of sheathing boards but do not cut into facing. Do not bridge building expansion joints with sheathing, cut and space edges to match spacing of structural support elements. DocuSign Envelope ID: ECCAC5A0-6CC8-4B37-8AD3-89D69F0AE1AE