... available 1. press resistant, 2.water-proof ,sun-resistant,anti-aging, tear proof.3.antifreeze, corrosion-resistant, 4.Waterproof, mildrewproof, tear ... %21Peel StrengthN/25mmInterior layer3.3Exterior layer3.7Permeability2000mm water column,2hImpermeable aluminium foil roof insulation