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Round 1 Bowling and Amusement 12/09/2024 Paradigm Design <br />Main Place Mall Expansion Grand Rapids, MI <br />Santa Ana, California <br />Project #2309147GR <br />GYPSUM BOARD 09 2900 - 7 <br />D.Locate edge and end joints over supports, except in ceiling applications where intermediate supports <br />or gypsum board back-blocking is provided behind end joints. Do not place tapered edges against cut <br />edges or ends. Stagger vertical joints on opposite sides of partitions. Do not make joints other than <br />control joints at corners of framed openings. <br />E.Form control and expansion joints with space between edges of adjoining gypsum panels. <br />F.Cover both faces of support framing with gypsum panels in concealed spaces (above ceilings, etc.), <br />except in chases braced internally. <br />1.Unless concealed application is indicated or required for sound, fire, air, or smoke ratings, <br />coverage may be accomplished with scraps of not less than 8 sq. ft. in area. <br />2.Fit gypsum panels around ducts, pipes, and conduits. <br />3.Where partitions intersect structural members projecting below underside of floor/roof slabs <br />and decks, cut gypsum panels to fit profile formed by structural members; allow 1/4- to 3/8- <br />inch-wide joints to install sealant. <br />G.Isolate perimeter of gypsum board applied to non-load-bearing partitions at structural abutments. <br />Provide 1/4- to 1/2-inch-wide spaces at these locations and trim edges with edge trim where edges of <br />panels are exposed. Seal joints between edges and abutting structural surfaces with acoustical sealant. <br />H.Attachment to Steel Framing: Attach panels so leading edge or end of each panel is attached to open <br />(unsupported) edges of stud flanges first. <br />I.Install sound attenuation blankets before installing gypsum panels unless blankets are readily installed <br />after panels have been installed on one side. <br />3.3 INSTALLATION OF INTERIOR GYPSUM BOARD <br />A.Install interior gypsum board in the following locations: <br />1.Wallboard Type: As indicated on Drawings. <br />2.Type X: As indicated on Drawings. <br />3.Ceiling Type: As indicated on Drawings. <br />4.Impact-Resistant Type: As indicated on Drawings. <br />5.Moisture- and Mold-Resistant Type: As indicated on Drawings. <br />6.Glass-Mat Interior Type: As indicated on Drawings. <br />7.Cementitious Backer Type: As indicated on Drawings. <br />B.Single-Layer Application: <br />1.On ceilings, apply gypsum panels before wall/partition board application to greatest extent <br />possible and at right angles to framing unless otherwise indicated. <br />2.On partitions/walls, apply gypsum panels horizontally (perpendicular to framing) unless <br />otherwise indicated or required by fire-resistance-rated assembly, and minimize end joints.