Materials specification

Installation guide

Architectural Specification

• Accurately located floor and ceiling runners along centerline of wall ensuring vertical alignment.
• Secure runners with suitable fasteners at 24" maximum centers and 2" from runner ends.
• At partition corners, one runner shall extend to the end of the corner and the other runner shall butt to it, allowing clearance for the gypsum board thickness as necessary. Do not miter runners.

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• Studs shall have a 5mm gap at top to web of runner to accommodate floor variations.
• Position studs into runners and twist to secure by friction fit. Space studs at 24" maximum centers with open sides facing the same direction.
• Studs located adjacent to door and window frames, partition intersection, and corners shall be anchored to runner flanges by screws or by crimping at each stud and runner flange.

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• The bracer channel shall be rolled formed from 0.9mm thick, hot-dip galvanized steel.
• It shall be used for improving strength of wall against lateral pressure.
• Open the 'Bracer' device of web of studs, the bracer channel is inserted through punched holes and secured it by pressing the device in original position.

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1. Apply gypsum board with the length parallel to the studs. Center abutting edges on stud flanges. Attached the gypsum board to studs with Type S drywall screws, they shall penetrate framing not less than 3/8" and be spaced maximum of 12" o.c. on all studs when the framing is 24" o.c.. Screws shall be spaced a maximum of 16" o.c. when framing is 16" o.c. or less. Screw shall be spaced not less than 3/8" from the ends and edges of gypsum board.

2. Starting in the upper corner of the wall, work across and down. Ends and edges of boards shall be touching but not forced tightly together.

3. Holding Hardirock Regular gypsum board firmly against the framing, begin fastening in the center of the board and move outward toward ends and edges.

4. Set fastener heads slightly indented from the surface without breaking the face paper or damaging the gypsum core.

5. Where required, install all services and insulation into the wall cavity before fixing boards to the second sides. Cut the first boards to appropriate width so as to ensure that the joints are staggered on alternate studs to joints on the first side.

6. Cut openings out of full boards or lay out joints to fall on the studs nearest the center of doors and windows. Where possible, position full boards to extend completely above and below openings and avoid piecing.