breathable membrane has excellent performance at water resistance, high vapour permeability, Good performance at UV resistance. Fedebrang breathable membrane paving on the top of the insulation system, it can strengthen the water tightness of the building, as well as to eliminate humidity inside the containment by the unique breathability, thus to retain the duration of building effectively, playing a part in thermal insulation, energy conservation and living environmental improvement.

Technical data	Testing standard	Unit	Data
Weight per unit area	EN1849	G/M2	90±10%
Resistance to water penetration	EN1848	-	W1
Vapour permeability	EN1931	g/m2-24h	≥2250
Tensile strength(CD/MD)	EN12311-1	N/50mm	75±15%/115±15%
Temperature range	EN13859-1	°C	-24~+70
Reaction to fire	EN13501-1:2002 EN11925-2	-	-
UV resistance	EN13859-1	Month	4

roofing 3 layer breathable membrane