Design and Specifications
Design Notes
• Frames, stumps and footings are to be designed and installed in accordance with the requirements of AS 1684 - 1999 "Residential Timber Framed Construction" and AS 2870 - 1996 "Residential Slabs and Footings - Construction".
• Exterior cladding must be properly weather sealed for the life of the structure, particularly at ends, edges & joints. Adequate drainage should be provided for any moisture which may develop inside the cladding due to condensation or leakage.
• Boral Plasterboard drywall materials and accessories must be installed in accordance with the detailed specifications supplied in Boral Plasterboard Technical Literature.
• Limiting heights will be determined by various design criteria including wind loads, deflection limits, stud size, stud spacing and charfactor number where applicable.
• With the introduction of "Charfactor numbers" assigned to each system, the designer/builder has greater choice available for selection of framing to meet the requirements of height, axial load and fire ratings. For detailed information on how to use "Charfactor Numbers" for framing selection, refer to Boral Plasterboard "Construction Selector" - Technical Manual 100C.
• Movement or control joints should be installed: (a) where the plasterboard abuts dissimilar materials, and/or where the construction changes within the plane of the wall; (b) in long unbroken partition or wall runs at not more than 12 metre centres; and (c) as required to accomodate shrinkage of timber.
Fire Performance
The OutRWALL™ system has been assessed by Warrington Fire Research in their assessment Nos. WFRA C91580 and WFRA C91585 for fire-ratings of 1 hour and 1.5 hours. The system must be assembled in accordance with the relevant assessment.
Acoustic Performance
Acoustic performance may be improved with variations in plasterboard, stud and/or partition width and choice of insulation. These variations offer a wide choice of attainable Rw values. For details, contact Boral Plasterboard.

Cladding
"Lightweight Cladding" includes, but is not limited to:
• Fibre cement sheets, profiles and weatherboard;
• Timber or hardboard weatherboards;
• Steel or aluminium profiles; and
• Plywood.
Note: Cladding does not include materials with a self ignition temperature of less than 200°C except where the fire rating is from the outside only.
Prefabricated Walls
Where conventional construction can not be used due to difficult access, the Boral OutRWALL™ exterior wall system may be prefabricated prior to erection.
Plasterboard Standard
Boral Plasterboard is manufactured in accordance with Australian Standard A.S. 2588 - 1983 "Gypsum Plasterboard" and is to be installed generally in accordance with the requirements of Australian/New Zealand Standard A.S/NZS 2589.1:1997 Part 1 "Gypsum Plasterboard".
Architectural Specification
Scope
Specify to meet project requirements.
Qualifications
All materials, unless otherwise indicated, shall be manufactured by Boral Plasterboard, and shall be installed in accordance with its current printed instructions.
Delivery and Storage of Materials
All materials shall be delivered in their original unopened packages and stored in an enclosed shelter providing protection from damage and exposure to the elements. Damaged or deteriorated materials shall be removed from the site.
Framing
Timber framing to receive plasterboard lining shall be structurally sound, free from bow, and in general compliance with Building Code requirements. Damaged and excessively bowed studs shall be replaced before installation of plasterboard lining. Timber framing shall approximate the moisture content it will reach in service by allowing the enclosed building to stand as long as possible prior to the application of plasterboard. Do not install plasterboard over wet framing.