Laserfiche WebLink
' <br /> ' <br /> C Adhesives: As recommended by Gypsum Board manufacturer, for adhesively applying <br /> gypsum ' <br /> board to concrete block and insulation,for laminating in multi=layer and single layer at fire <br /> rated construction. <br /> D Beads and Trim:Exterior corner beads,Dur-A-Bead corner reinforcement;at all exteriar t <br /> corners. Inside corners,to have Perf-A-Bead corner reinforcement. Where gypsum board <br /> terminates provide#400 series metal trim. <br /> E Tape System: All exposed joints and trim to be finished by using USG Perf-A-Tape joint ' <br /> system. <br /> F Sealant: Sheetrock brand W/R sealant, apply to all cut edges and screw heads of water- ' <br /> resistant, <br /> water resistant fire rated and exterior soffit gypsum board. <br /> 1. Caulkin�:Provide caulking as recommended by manufactured to achieve wall STC ' <br /> rating. <br /> 2.3 ADHESNES , <br /> 1. Only adhesives which are recommended by the manufactured for use on the specific <br /> substrate to , <br /> insure permanent bond. <br /> PART 3: EXECUTION <br /> 3.1 INSTALLATI(JN I <br /> A. Wallboard: ' <br /> 1. General: Hold gypsum board in firm contact with supports when installing. No <br /> horizontal joints <br /> permitted,eliminate small pieces. Do not use broken or damaged sheets. ' <br /> 2. Joints: install so all joints occur over a support.Neatly fit all abutting joints and to <br /> all obstructions. ' <br /> Do not force joints overly tight. <br /> 3. Fastening,General:Fasten gypsum board with adhesive and drywall screws. Apply <br /> adhesive as ' <br /> recommended by manufacturer. Space screws not less than 3/8" from edges and <br /> ends of wallboard. Stagger screws on adjoining edges or ends. While screws aze <br /> being driven, hold wallboard in firm contact underlying support. Attach from ' <br /> central portion of wallboard toward ends and edges. Drive screws with an electric <br /> screw gun equipped with adjustable screw depth control and Phillips bit. Set heads <br /> of exposed screws to provide slight depression below surface of gypsum board. If <br /> screw size and screw spacing as specified differs with manufacturer's , <br /> recommendations,verify with architect prior to application. <br /> 4. Metal corner bead: Sacurely install at all corners in single lengths where the length , <br /> of the corner <br /> dces not exceed standard stock lengths. Apply at least two coats of compound over <br /> beads,each coat feathered out onto panel face. <br /> GYPSUM DRYWALL Page 2 of 3 1 <br /> , <br />