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General Construction

Part B – Specification and Response Requirements

Annexure 2- Minimum Design & Construction Specification

Page 54 Updated 19/07/2013

The sheet materials shall be laid horizontally, with staggered joins, if room length sheets are

not possible, and fixed into the studs as per the manufacturer’s recommendations for use as

a wall lining. .

3.7 INSULATION

Insulation shall be in sheets or batts and of a type that conforms to AS Codes and current

BCA requirements and is fire resistant (non-flammable).

The following minimum shall apply:

(i) Provide minimum R3.0 thermal resistance bulk insulation to all ceilings to Living

Areas only. Ceiling insulation to Garages & Carports is NOT required unless

needed to meet the energy efficiency requirements of the BCA.

(ii) Provide R1.5 thermal resistance bulk insulation to external walls enclosing the

Living Area. Where a timber or steel framed partition type wall divides the living

space from a fully enclosed garage, that wall is required to be insulated. Internal

partition walls within the living area are NOT required to be insulated unless

needed to meet the energy efficiency requirements of the BCA.

(iii) Extend insulation to the top of the ceiling insulation at the external walls.

3.8. WINDOWS

3.8.1 General

Frames shall be shop fabricated into complete assemblies as detailed and scheduled

Protect aluminium and pre-treat timber work before it leaves the workshop.

Accurately position and build into the work.

All windows shall be completed with flashings and hardware, shop fitted where practicable.

All glass and glazing shall comply with AS 1288

3.8.2 Aluminium windows

3.8.2.1 General

The aluminium extrusions shall comply with AS1866 and be at least equivalent to Australian

Alloy B6063, temper designation T5. Unless specified otherwise, manufacture and install

frames in accordance with AS2047. Unless otherwise scoped the minimum wind rating shall

be N2 and the frame shall be marked accordingly.

Joints shall be accurately machined and screws shall be 18/8 type stainless steel. Reinforce

mitres with extruded or pressed metal splines and seal joints with polyurethane on assembly.

3.8.2.2 Finish

All aluminium shall be powder coated to AS3715 colour as scheduled with powder coating

complying with APAS 0155/2 to a minimum thickness of 40µm, or anodized to AS1231 with a

minimum coating thickness of 15µm, with all exposed surfaces free from blemishes.

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