Heat Flow Out (Winter)

Heat Flow In (Summer)

Foilstar Phenolic - 25mm view RT3.2 RT2.5
Foilstar Phenolic - 40mm view RT3.8 RT3.1
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.