PPU can also be used to thermal insulation of old bitumen roofs.
11-12-2018, 15:20
The practical properties of polyurethane foams are especially important when insulating difficult places - parapets, light domes, and communications laying places. PPU can also be used to thermal insulation of old bitumen roofs. Elastospray foam when it enters the roof surface quickly hardens. In a few minutes you can walk on it. To protect the hardened polyurethane foam from the destructive effects of the UV rays, it is enough to cover it with special varnish.
