Fix the QT EcoSeries Wall Panel onto timber battens or metal channels with galvanised
75mm x 3.15 or 3.75mm ring shank nails (timber battens only) or 10g x 75mm Class 3 (AS3566) screws (timber or steel battens) with the addition of QT Buttons in all cases. Panel fixings must be no closer than 50mm but no further than 112mm to the horizontal panel edge and no closer than 50mm to the vertical edge, while normal fixing centres are at 225mm maximum centres. It is essential that the vertical and horizontal butt joints be bonded with polyurethane foam adhesive. Also ensure polyurethane foam adhesive is applied to all batten faces prior to the panel being pushed against them for maximum bonding to the support frame. Panels can be joined off stud, if glued to the abutting panel with polyurethane foam adhesive. QT EcoSeries Wall Panels can span 225mm as an unsupported cantilever. Panels must span across a minimum of two channels or battens and must be installed in a horizontal stretcher bond pattern. To prevent corrosion from salt aerosols in high corrosion zones, (such as geothermal activity or within a 500m distance from the sea) upgrade fixing screws to class 4 or stainless steel (AS3566).

2. 2 Framing

Timber framing must comply with AS 1684 and steel framing must be designed and constructed in accordance with AS 3623. Minimum distances from end and edge of timber framing members must be observed to avoid splitting. Stud spacing must not exceed 600mm centres. Noggings must be fitted between studs at 1350mm maximum centres.

With a 1.8 m spirit level, check for variations in the frame that are over 6 mm. Large variations negatively affect weather protection or can appear as visual defects under critical light conditions. If the frame is out of plumb, but not structurally defective, consult with the builder or contractor for remediation.

* Insert or select appropriate specifications.

Scope

The contractor shall furnish all material and equipment required to satisfactorily complete the installation and jointing of Hebel PowerFloor where indicated in the contract specification.

Materials

All AAC material shall be a Hebel PowerFloor panel as manufactured by CSR Hebel.

All accompanying fixings shall be those supplied by CSR Hebel or approved by the project engineer.

All lining materials shall be Gyprock plasterboard as manufactured and supplied by CSR Gyprock (or products of equivalent or better performance). All plasterboard shall be manufactured to meet the dimensional requirements of AS/NZS2588 ‘Gypsum Plasterboard’.

Steel frame components shall be those manufactured by Rondo Building Services Pty Ltd (or products of equivalent or better performance).

Construction adhesive shall be Fuller Max Bond as manufactured and supplied by Fuller (or products of equivalent or better performance).

All sealants shall be a polyurethane type with required fire and acoustic ratings, (or products of equivalent or better performance).

All infill materials shall be products manufactured and supplied by CSR Bradford (or products of equivalent or better performance).

Power Floor System

The contractor shall supply and install a Hebel PowerFloor system *PF-………(…), in accordance with CSR Hebel Detached Houses & Low Rise Multi-Residential Floor Design Guide, NºHBLA185, and CSR Gyprock Fibre Cement Fire & Acoustic Design Guide (‘The Red Book‘), NºGYP500, and shall satisfy the following performance criteria.

The Hebel PowerFloor system shall have a Fire Resistance Level of *FRL…/…/… for a fire source ‘from above’ in accordance with the requirements of AS1530.4. Design of the joists shall allow for temperature effects.

Installation shall be carried out to the level specified for a field acoustic performance of *D_ntw………… using cavity infill of *Bradford …………… (or products of equivalent or better performance).

Levels of Finish – Floor Covering

Prior to installation of the floor covering,the contractor shall ensure the installed panels are within the tolerances of the project specifications. The contractor shall ensure that all control joints are installed as per project specifications, panel joints are completely filled with Hebel Adhesive, minor chipping damage of the panels shall be patched with Hebel Mortar, and all sealants are installed as per manufacturer’s specifications.

Floor coverings shall be installed as per manufacturer’s specifications, unless specified otherwise in the contract documentation.

Ceiling System

The contractor shall supply and install the Gyprock Ceiling System *N°CSR……… in accordance with CSR Gyprock Fibre Cement Fire & Acoustic Design Guide (‘The Red Book‘), NºGYP500. The ceiling framing shall be lined with *……… layers of……… mm Gyprock……… plasterboard.

Levels of Finish-Ceiling Systems

All ceiling framing systems, plasterboard lining, jointing and finishing shall be carried out to *Level ……… Level of Finish, in accordance with CSR Gyprock Plasterboard Residential Installation Guide, NºGYP547, AS/NZS2589.1 ‘Gypsum Linings in Residential and Light Commercial Construction – Application and Finishing’.

Plasterboard

The Hebel PowerFloor system ceiling framing shall be lined with *………… layer/s of …………mm Gyprock ……………… plasterboard.

All layers shall be fixed to the framing (ie., timber or steel floor joists and/or steel furring channels) as specified for the relevant system in the CSR Gyprock Ceiling Systems Installation Guide, NºGYP570, other relevant CSR Gyprock technical literature, and Rondo Building Services Pty Ltd literature or steel frame manufacturer’s literature.

Jointing & Finishing

Jointing and finishing of the outer layer of plasterboard shall be in accordance with the CSR Gyprock Plasterboard Residential Installation Guide, NºGYP547.

Caulking

Where caulking is indicated in fire rated systems *…………………… fire rated polyurethane sealant or fire rated backing rod with *……………… acoustic rated polyurethane sealant shall be used, and installed in accordance with the manufacturer’s recommendations.

Where caulking is indicated in wet areas, a *…………………… polyurethane sealant must be used when caulking *non-fire rated/fire rated wet areas, as indicated, and installed in accordance with the manufacturer’s recommendations.

Important

Any variation or substitution of materials or assembly requirements, or compromise in assembly may result in failure under critical conditions.