Foilboard GREEN 25 mm
Heat Flow out (Winter) : RT4.3
Heat Flow in (Summer) : RT2.2
For larger sub-ﬂoor areas, the Foilboard® GREEN rigid panel can be fixed directly to the underside of the joist, giving the maximum thermal benefit.
RT - R-values displayed are "total system R-values", as required by the Energy Provisions of the Building Code of Australia.