economical sub roof membrane

DUO longlife ND extra roofing membrane

2-layer, vapour-permeable sub-roof and sheathing membrane with TPU coating and a PES non-woven fabric with embossed grid structure
Can be used in ventilated and unventilated roof assemblies as a trussing, sub-roof or sheathing membrane
Can be used in accordance with the Frauenhofer Institute certification as a seam and perforation-protected underlay membrane, trussing sheet (Class 3) at a roof pitch of 14° or more without perforation protection
Can be used as a rain-proof sub-roof (class 2) with perforation protection
Extremely resistant to chemicals
Resistant to chemical impregnation, chain saw oil, wood rot and mould
Suitable as temporary roofing for no more than 12 weeks
Lasting thermal stability from -40°C to +110°C
Two vertically aligned self-adhesive strips ensure economical and lasting adhesion of longitudinal seams

UV resistance:	16 weeks
Outdoor exposure period:	12 weeks
Elongation (following artificial ageing), EN 12311-1:	Longitudinal: 45% Transverse: 75%
Tear resistance (nail shank), EN 12310-1:	Longitudinal: 300 N Transverse: 300 N
Resistance to air penetration:	-
Fire behaviour EN 13501-1 EN 11925-2:	Class E
Resistance to water penetration (following artificial ageing) EN 1928:	W1
Central Organization of the German Roofing Trade (ZVDH) classification for sub-roof membranes:	UDB-A
Central Organization of the German Roofing Trade (ZVDH) classification for underlays:	USB-A
Length:	50 m
Width:	1.5 m
m² per roll:	75 m²
Rolls per pallet:	15 rolls
Weight:	270 g/m²
Certification:	CE
Water column, EN 20811:	> 3000 mm
sd value EN 12572:	0.15 m
Tensile strength, EN 12311-1	Longitudinal: 500N/50mm Transverse: 500 N/50 mm
Tensile strength (following artificial ageing), EN 12311-1	Longitudinal: 400 N/50mm Transverse: 400 N/50 mm
Elongation EN 12311-1	Longitudinal: 50% Transverse: 80%