Orange County NC Website
Browse       Search
DocuSign Envelope ID:D561B1AE-DF34-4907-AD06-AOEB37BBE427 <br /> CHAPEL HILL ORANGE COUNTY VISITORS BUREAU August 12,2020 <br /> 308 WEST FRANKLIN,CHAPEL HILL,NC <br /> a. Stagger abutting end joints not less than one framing member in alternate courses <br /> of panels. <br /> b. At stairwells and other high walls, install panels horizontally, unless otherwise <br /> indicated or required by fire-resistance-rated assembly. <br /> 3. On Z-furring members, apply gypsum panels vertically (parallel to framing) with no end <br /> 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 1 framing member, 16 inches (400 mm) <br /> minimum, from parallel base-layer joints, unless otherwise indicated or required by fire- <br /> resistance-rated assembly. <br /> 2. On partitions/walls, apply gypsum board indicated for base layers and face layers <br /> vertically (parallel to framing) with joints of base layers located over stud or furring <br /> member and face-layer joints offset at least one stud or furring member with base-layer <br /> joints, unless otherwise indicated or required by fire-resistance-rated assembly. Stagger <br /> joints on opposite sides of partitions. <br /> 3. On Z-furring members, apply base layer vertically (parallel to framing) and face layer <br /> either vertically (parallel to framing) or horizontally (perpendicular to framing) with <br /> vertical joints offset at least one furring member. Locate edge joints of base layer over <br /> furring members. <br /> 4. Fastening Methods: [Fasten base layers and face layers separately to supports with <br /> screws] [Fasten base layers with screws; fasten face layers with adhesive and <br /> supplementary fasteners]. <br /> D. Laminating to Substrate: Where gypsum panels are indicated as directly adhered to a substrate <br /> (other than studs,joists, furring members, or base layer of gypsum board), comply with gypsum <br /> board manufacturer's written recommendations and temporarily brace or fasten gypsum panels <br /> until fastening adhesive has set. <br /> E. Curved Surfaces: <br /> 1. Install panels horizontally (perpendicular to supports) and unbroken, to extent possible, <br /> across curved surface plus 12-inch- (300-mm-) long straight sections at ends of curves <br /> and tangent to them. <br /> 2. For double-layer construction, fasten base layer to studs with screws 16 inches (400 mm) <br /> o.c. Center gypsum board face layer over joints in base layer, and fasten to studs with <br /> screws spaced 12 inches (300 mm)o.c. <br /> 3.4 INSTALLING TRIM ACCESSORIES <br /> A. General: For trim with back flanges intended for fasteners, attach to framing with same <br /> fasteners used for panels. Otherwise, attach trim according to manufacturer's written <br /> instructions. <br /> GYPSUM BOARD 092900 - 7 <br />