DUO extra


  • 3-layer, vapour-permeable sheathing membrane with microporous film and woven grid
  • Can be used in ventilated and unventilated roof assemblies as a trussing, sub-roof or sheathing membrane
  • Can be used as a sub-roof glued to sheathing or a dimensionally stable underlay
  • Two vertically aligned, integrated self-adhesive strips ensure economical and lasting adhesion of longitudinal seams 


technical data 

Length50 m
Width1,5 m
m² per roll75 m²
Packaging (concatenated)24 rolls
Weight per m² (approx.)11,25 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 125720,02 m
Tensile strength longitudinal:, EN 12311-1310 N / 50 mm
Tensile strength transverse:, EN 12311-1240 N / 50 mm
Tensile strength (following artificial ageing) longitudinal, EN 12311-1280 N / 50 mm
Tensile strength (following artificial ageing) transverse, EN 12311-1215 N / 50 mm
Elongation, longitudinal, EN 12311-170 %
Elongation, transverse, EN 12311-180 %
Elongation, longitudinal (following artificial ageing), EN 12311-155 %
Elongation, transverse (following artificial ageing), EN 12311-165 %
Tear resistance (nail shank) longitudinal , EN 12310-1180 N
Tear resistance (nail shank) transverse , EN 12310-1210 N
Thermal stability-40°C bis +80°C
UV resistanceAt most 12 weeks
Outdoor exposure periodAt most 4 weeks
ZVDH classification sub-roof membranesUDB-A
ZVDH classification trussing membranesUSB-A
Dachbahn DUO extra

CREATON roof membrane applications




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

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