Code Compliance
GreenGlass gypsum sheathing is manufactured to comply with ASTM C1177. As such, it conforms to IRC R702.3 and IBC 2506.2. For the acceptance of gypsum sheathing as structural wall bracing, refer to IRC R602.10.3 and IBC 2506.2. Please consult your local building code.
Installation
Before installing GreenGlass gypsum sheathing, read cautions regarding handling and required hygiene.
GreenGlass gypsum sheathing must be installed in accordance with ASTM C1280, ASTM C840 and/or Gypsum Association publication GA-253 and/or GA-216. GreenGlass gypsum sheathing may be installed parallel or perpendicular to either wood or metal framing, with orientation determined by the specific fire-rated assemblies and shear wall applications or other reference documents as required by the designer.
Framing: The minimum width of wood framing members shall be 1-1/2". The minimum width of metal framing members shall be 1-1/4". Framing members shall not vary more than 1/8" from the plane of the faces of adjacent framing.
Fasteners: Drive fasteners flush with the surface of the panel. Do not countersink fasteners. All fasteners must penetrate into the framing member. Locate fasteners a minimum of 3/8" from the edges and ends of the sheathing. Use either nails or screws to attach GreenGlass gypsum sheathing to framing members. Please consult Temple-Inland for specific shear resistance data.
Joints: Install GreenGlass gypsum sheathing so that end joints are staggered on horizontal applications. Ends and edges of GreenGlass gypsum sheathing should fit tightly against one another. Refer to the project specifications for control joint recommendations.
Fire-Rated Assemblies: GreenGlass gypsum sheathing should be installed according to the appropriate fire-rated system/assembly specification and in accordance with the appropriate standards: ASTM C1280, ASTM C840, GA-253, GA-216. Click here for a listing of over 150 U.L. approved assemblies and design details or contact your Temple-Inland representative for details.
Wall Applications
GreenGlass gypsum sheathing may be applied under most traditional exterior sidings and wall coverings, including wood, hardboard siding, fiber cement siding, vinyl, metal, stone, brick, wood shingles, shakes, plywood panels, stucco and EIFS systems. Apply all exterior siding/finishes and weather resistive barriers according to the manufacturers’ instructions, local building code and/or architect design.
Brick Wall Application: Brick, masonry or stone veneer can be applied over GreenGlass gypsum sheathing in the same manner as traditional gypsum sheathing. Attach the masonry ties securely through the panels into the framing member. Space the ties according to masonry courses. Apply the weather resistive barrier in accordance with local building codes and/or architect design.
Hardboard, Fiber Cement, Shingles, Shakes, Vinyl, Metal or Wood siding: All siding must be attached to the framing member through the GreenGlass gypsum sheathing. Apply a weather resistive barrier in accordance with local building codes and/or architect design.
Conventional Stucco: GreenGlass gypsum sheathing may be used as a substrate under conventional stucco systems using paper-backed metal lath. The lath must be mechanically fastened through the GreenGlass gypsum sheathing into the framing members. Apply all exterior siding/finishes and weather resistive barriers according to the manufacturers’ instructions, local building code and/or architect design. Consult the stucco system manufacturer for approval using GreenGlass gypsum sheathing as a substrate.
Exterior Insulation and Finish System (EIFS): GreenGlass gypsum sheathing is an approved substrate for many different EIFS applications and systems as it is manufactured to comply with ASTM C1177. Please consult the particular EIFS system manufacturer for the approval of using GreenGlass gypsum sheathing. Apply all exterior siding/finishes and weather resistive barriers according to the manufacturers’ instructions, local building code and/or architect design.
Soffit Applications
GreenGlass gypsum sheathing may be used in exterior soffit applications wherever gypsum sheathing is acceptable. GreenGlass gypsum sheathing should be installed according to the appropriate fire-rated system/assembly specification and in accordance with the appropriate standards: ASTM C1280, ASTM C840, GA-253, GA-216.
Finish Instructions: Finish all joints with 2”-wide fiberglass mesh tape and setting-type joint compound. When joints are dry, skim coat the entire panel surface with setting compound to achieve a smooth surface for final finishing. Use an exterior grade primer and apply 2 coats of quality exterior paint. For direct-applied finishing systems in soffit areas, consult the finishing system’s manufacturer for specific installation instructions.
Fastening and Finishing Requirements
Fasten GreenGlass gypsum sheathing to framing members in accordance with: ASTM C1280, ASTM C840, GA-253, GA-216, in the following manner:
Notes:
1. 1/2" framing spacing is only for mechanically attached claddings. Maximum framing spacing when 1/2" is applied behind an EIFS system is 16” OC.
2. For wood framing fastener spacing when meeting racking shear strength in normal wind zone areas, the fastener spacing must be 4" OC around the perimeter and 8" OC in the field for those considered bracing panels.
3. For racking strength resistance, apply panel edges of GreenGlass gypsum sheathing to framing spaced no more than 16" OC for both 1/2" and 5/8" thicknesses.
4. Fire-rated assemblies may require additional fasteners. See assembly details for specifics.
5. Screws must meet or exceed ASTM C1002 and/or ASTM C954.