SG431

Cladding - Combined

GUIDE NOTE: Refer to Design Guide sections DG/ FABRIC, DG/ STRUCTURE, DG/ MATERIALS AND FINISHES, DG/ WALLS

ID
Title
Compliance Level
Expand All
1
General
Mandatory
Mandatory

As per current NATSPEC except as follows: 

1.7 Thermal Break
 

A metal framed building with external cladding attached to the metal frame, must have a thermal break installed between the metal frame and the external cladding; and consisting of a material with an R –Value of not less than 0.2.

2
Products
Mandatory
Mandatory

As per current NATSPEC except as follows: 

2.3 AAC Cladding


GUIDE NOTE:  AAC Cladding is not to be used in school projects. 

2.4 Hardboard Planks
 

GUIDE NOTE:  Hardboard Planks are not to be used in School Projects. 

2.6 Timber Weatherboards
 

GUIDE NOTE:  TIMBER WEATHERBOARDS are NOT to be USED IN SCHOOL PROJECTS.

2.9 Fibre Cement Cladding
 

Eaves and soffit lining

GUIDE NOTE: Add the following subclause to NATSPEC Building Template/Worksection. "Fibre Cement Cladding"
 

Installation

  • Fixing: Refer to the manufacturer’s printed fixing instructions for correct fasteners and fixing procedure to substrate.
  • Fasteners must not be overdriven as this can reduce the holding capacity of the sheet. 
     
2.14 Plastic Cladding
 

GUIDE NOTE:  Plastic cladding is not to be used in school projects. 

3
Execution
Mandatory
Mandatory

As per current NATSPEC.

4
Selections
Mandatory
Mandatory

As per current NATSPEC.

Performance Criteria

Cladding system selections should be based on the following performance criteria:

  • Offer value for money in a Whole of Life framework;
  • Be readily available commercial proprietary systems
  • Have appropriate aesthetic appeal and preferably be pre-finished.
  • Offer long life span with high durability and robustness were in student contact zones
  • Have low maintenance requirements and costs
  • Remain intact and waterproof under the local climatic conditions.
  • Provide adequate means of dealing with vapour pressure, condensation, corrosion and thermal movement.
  • Provide appropriate corrosion resistance for:
  • Atmospheric exposure conditions
  • Service conditions due to the nature of nearby activities taking place in the installation
  • Contact with other materials or contact with water washing off other materials
  • Support sustainability by having recycling potential at the end of usable life, and/or include recycled content.
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