High demand for insulation specifically made for Cathedral ceilings and flat roofs and sheds has led to the development of Cathedral 25. This exceptional product suits those roof areas where space is limited and increased thermal insulation is required. Installing these panels is simple and quick with the patented lock-in fasteners.

Heat Flow Out (Winter): RT3.3

Heat Flow In (Summer): RT2.4

With our range of versatile products, you can be sure that Foilboard will benefit your residential or commercial project. To find out more, contact a trusted member of our technical department to receive professional insulation advice on 1800 354 717 or contact us.

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.