Heat Flow Out (Winter)

Heat Flow In (Summer)

Foilboard GREEN 20 view RT3.3 RT2.1
Foilboard GREEN 25 view RT3.4 RT2.2
Foilboard GREEN 40 view RT3.9 RT2.6
Foilboard GREEN 50 view RT4.1 RT2.9
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.