25 January 2013
A new door from Stertil Stokvis is constructed from steel sandwich panels with a polyisocyanurate (PIR) core. The polymer structure of the PIR foam from Kingspan is difficult to ignite and self-extinguishing, thereby pr
Panels are HFC, CFC and HCFC free and the insulation core has been awarded a Low Global Warming Potential classification. The thermal properties of the door are said to help keep down energy costs.