NCC 2022 Volume One - Building Code of Australia Class 2 to 9 buildings
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39

Specification 39 Sub-floor and soil thermal performance

Specification 39 Sub-floor and soil thermal performance

2019: Spec J1.6: 1
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To detail the thermal performance achieved by sub-floor spaces and soil in direct contact with a floor.

2019: Spec J1.6: 2
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To provide the R-Values considered to be achieved by sub-floor spaces and soil in direct contact with a floor.

The R-Values provided are intended to assist in determining whether and how much additional insulation is required to achieve the minimum Total R-Values in Table J4D7. This is provided as an alternative to carrying out a more detailed calculation using Section 3.5 of CIBSE Guide A.