NCC 2019 Volume One Amendment 1
Section J Energy efficiency

Section J Energy efficiency

SA Part J1 Building fabric

After J1.3(b) insert SA J1.3(c) as follows:

SA J1.3 Roof and ceiling construction


If a Class 5, 6, 7, 8 or 9 building, or part of a building—


is constructed in climate zone 4 or 5; and


has a roof pitch of not more than 5 degrees; and


has a conditioned space,

the roofing material must have an upper surface solar absorptance value of not more than 0.4.