Heat Flow Out (Winter)

Heat Flow In (Summer)

Foilboard Green - 10mm view RT1.8 RT4.1
Foilboard Green - 15mm view RT1.9 RT4.2
Foilboard Green - 20mm view RT2.1 RT4.3
Foilboard Green - 25mm view RT2.2 RT4.4
Foilboard Green - 30mm view RT2.3 RT4.5
Foilboard Green - 40mm view RT2.6 RT4.8
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.