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

Length50 m
Width1,5 m
m² per roll75 m²
Packaging (concatenated)15 rolls
Weight per m² (approx.)20,25 kg
Fire performanceClass E
Resistance to air penetration< 0,005 m³ / m² h 50 Pa
Resistance to water penetration, EN 1928W1
Water column, EN 20811> 300 cm
sd value, EN 125720,15 m
Tensile strength longitudinal:, EN 12311-1500 N / 50 mm
Tensile strength transverse:, EN 12311-1500 N / 50 mm
Tensile strength (following artificial ageing) longitudinal, EN 12311-1400 N / 50 mm
Tensile strength (following artificial ageing) transverse, EN 12311-1400 N / 50 mm
Elongation, longitudinal, EN 12311-150 %
Elongation, transverse, EN 12311-180 %
Elongation, longitudinal (following artificial ageing), EN 12311-145 %
Elongation, transverse (following artificial ageing), EN 12311-175 %
Tear resistance (nail shank) longitudinal , EN 12310-1300 N
Tear resistance (nail shank) transverse , EN 12310-1300 N
Thermal stability-40°C bis +110°C
UV resistanceAt most 16 weeks
Outdoor exposure periodAt most 12 weeks
ZVDH classification sub-roof membranesUDB-A
ZVDH classification trussing membranesUSB-A
Dachbahn DUO longlife ND extra

CREATON roof membrane applications




To ensure the lasting function of CREATON DUO longlife ND extra, we recommend only using the matching CREATON accessory:  

  • CREATON NKS seam adhesive strips
  • CREATON SKL special adhesive
  • CREATON NDS nail sealing strips
  • CREATON UAB sub-roof connection tape
  • CREATON NDB PE nail sealing tape
  • CREATON sub-roof connection adapter