NCC 2022 Volume One - Building Code of Australia Class 2 to 9 buildings
Filter by state
  • Australian Capital Territory
  • New South Wales
  • Northern Territory
  • Queensland
  • South Australia
  • Tasmania
  • Victoria
  • Western Australia
Filter by zone
  • Climate Zone 1
  • Climate Zone 2
  • Climate Zone 3
  • Climate Zone 4
  • Climate Zone 5
  • Climate Zone 6
  • Climate Zone 7
  • Climate Zone 8
Classification
Building class 1a Building class 1b Building class 2 Building class 3 Building class 4 Building class 5 Building class 6 Building class 7a Building class 7b Building class 8 Building class 9a Building class 9b Building class 9c Building class 10a Building class 10b Building class 10c

Filter

Filter by state
  • Australian Capital Territory
  • New South Wales
  • Northern Territory
  • Queensland
  • South Australia
  • Tasmania
  • Victoria
  • Western Australia
Filter by zone
  • Climate Zone 1
  • Climate Zone 2
  • Climate Zone 3
  • Climate Zone 4
  • Climate Zone 5
  • Climate Zone 6
  • Climate Zone 7
  • Climate Zone 8
Classification
Building class 1a Building class 1b Building class 2 Building class 3 Building class 4 Building class 5 Building class 6 Building class 7a Building class 7b Building class 8 Building class 9a Building class 9b Building class 9c Building class 10a Building class 10b Building class 10c

36

Specification 36 Material properties

Specification 36 Material properties

2019: Spec J1.2: 1

To clarify that Specification 36 covers the relevant properties attributed to common construction materials, air films and airspaces, and reflective surfaces.

2019: Spec J1.2: 2

To detail the relevant properties attributed to common construction materials, air films and airspaces, and reflective surfaces.

The values provided in Tables S36C2a to S36C2e are material density values and thermal conductivity (k) values for common construction materials. Tables S36C2f to S36C2m list the R-Values of airspaces and air films, and expected added R-Values provided by a reflective surface. All except the material density can be used in determining the Total R-Value of a roof, wall or floor system.

The term surface density suggests mass per unit volume but in this context is the mass of the full thickness of 1 square metre of wall surface area.

S36C2(4) explains the meaning of a ventilated roof space.