Heat Flow Out (Winter)

Heat Flow In (Summer)

Standard 10 view RT3.9 RT3.1
Super 15 view RT4.1 RT3.2
Ultra 20 view RT4.2 RT3.3
RT - R-values displayed are "total system R-values", as required by the Energy Provisions of the Building Code of Australia.

Calculation is based on the use of the Foilboard® Insulation Panel only. Under no circumstances can this calculation be used in conjunction with any alternative product, as results will vary.