The diagram below demonstrates that the insulation capacity of rigid polyurethane foam is outstanding. In addition the foams also exhibit excellent physical properties such as mechanical strength, dimensional stability, water resistance, etc.
Another advantage of rigid polyurethane foam is the relatively light weight to strength ratio when compared to other building products.
Polyurethane Foam is a rigid cellular plastic and is available either foamed on site or in sheet form. The foam has very high thermal properties for their thickness due to the presence of trapped foaming gases, which are better insulators than air.