... , in underfloor heating insulation, wet rooms, water pipes, ceilings and shower trays as a water barrier. Thickness6mm-100mmWidth600/900/1200mmlength1200-6000mm(can ... strengthMinimum 150KpaMoisture permeabilityMaximum 3.0ng/(Pa. m. s)Water absorptionMaximum 1.5%(in water for 96h)Density30-40kg/m3Thermal conductivityMaximum 0.028W ... success. XPS polystyrene foam sheet/XPS air duct board green color