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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 - 8 <br />a.Stagger abutting end joints not less than one framing member in alternate courses of <br />panels. <br />b.At high walls, install panels horizontally unless otherwise indicated or required by fire- <br />resistance-rated assembly. <br />3.On Z-shaped furring members, apply gypsum panels vertically (parallel to framing) with no <br />end joints. Locate edge joints over furring members. <br />4.Fastening Methods: Apply gypsum panels to supports with steel drill screws. <br />C.Multilayer Application: <br />1.On ceilings, apply gypsum board indicated for base layers before applying base layers on <br />walls/partitions; apply face layers in same sequence. Apply base layers at right angles to <br />framing members and offset face-layer joints one framing member, 16 inches minimum, from <br />parallel base-layer joints, unless otherwise indicated or required by fire-resistance-rated <br />assembly. <br />2.On partitions/walls, apply gypsum board indicated for base layers and face layers vertically <br />(parallel to framing) with joints of base layers located over stud or furring member and face- <br />layer joints offset at least one stud or furring member with base-layer joints unless otherwise <br />indicated or required by fire-resistance-rated assembly. Stagger joints on opposite sides of <br />partitions. <br />3.On Z-shaped furring members, apply base layer vertically (parallel to framing) and face layer <br />either vertically (parallel to framing) or horizontally (perpendicular to framing) with vertical <br />joints offset at least one furring member. Locate edge joints of base layer over furring <br />members. <br />4.Fastening Methods: Fasten base layers and face layers separately to supports with screws. <br />D.Laminating to Substrate: Where gypsum panels are indicated as directly adhered to a substrate (other <br />than studs, joists, furring members, or base layer of gypsum board), comply with gypsum board <br />manufacturer's written instructions and temporarily brace or fasten gypsum panels until fastening <br />adhesive has set. <br />3.4 INSTALLATION OF TILE BACKING PANELS <br />A.Glass-Mat, Water-Resistant Backing Panels: Comply with manufacturer's written installation <br />instructions and install at locations indicated on Drawings. Install with 1/4-inch gap where panels abut <br />other construction or penetrations. <br />B.Cementitious Backer Units: ANSI A108.11, at locations indicated on Drawings. <br />C.Where tile backing panels abut other types of panels in same plane, shim surfaces to produce a <br />uniform plane across panel surfaces.