DUO longlife ND extra roofing membrane

2-layer, vapour-permeable sub-roof and sheathing membrane with TPU coating and a PET non-woven fabric with embossed grid structure
Can be used in ventilated and unventilated roof assemblies as a trussing, sub-roof or sheathing membrane
Extremely resistant to chemicals
Resistant to chemical impregnation, chain saw oil, wood rot and mould
Can be used as bonded underlay on formwork or dimensionally stable carpet pad
Two vertically aligned self-adhesive strips ensure economical and lasting adhesion of longitudinal seams

Technical data

Length	50 m
Width	1,5 m
m² per roll	75 m²
Packaging (concatenated)	15 rolls
Weight per m² (approx.)	20,25 kg
Fire performance	Class E
Resistance to air penetration	< 0,005 m³ / m² h 50 Pa
Resistance to water penetration, EN 1928	W1
Certification	CE
Water column, EN 20811	> 300 cm
sd value, EN 12572	0,15 m
Tensile strength longitudinal:, EN 12311-1	500 N / 50 mm
Tensile strength transverse:, EN 12311-1	500 N / 50 mm
Tensile strength (following artificial ageing) longitudinal, EN 12311-1	400 N / 50 mm
Tensile strength (following artificial ageing) transverse, EN 12311-1	400 N / 50 mm
Elongation, longitudinal, EN 12311-1	50 %
Elongation, transverse, EN 12311-1	80 %
Elongation, longitudinal (following artificial ageing), EN 12311-1	45 %
Elongation, transverse (following artificial ageing), EN 12311-1	75 %
Tear resistance (nail shank) longitudinal , EN 12310-1	300 N
Tear resistance (nail shank) transverse , EN 12310-1	300 N
Thermal stability	-40°C bis +110°C
UV resistance	At most 16 weeks
Outdoor exposure period	At most 12 weeks
ZVDH classification sub-roof membranes	UDB-A
ZVDH classification trussing membranes	USB-A