Vent pipe grommet



  • Keeps building components dry: protruding sleeve reliably drains water away on the sides
  • Permanently tight seal: windproof, waterproof, permeable
  • Easy to stick: the grommet extends laterally over the vent pipe tile
  • Easy to work with thanks to the release film divided in the middle
  • Practical handling: the vent pipe can be pushed and pulled through the grommet – the joint remains sealed
  • Subsequent work can be carried out more flexibly: 6 months of outdoor exposure
  • Excellent values in hazardous substance testing, has been tested according to the ISO 16000 evaluation scheme

Areas of application

Grommet for the windtight sealing of roof lining membranes and wood fibre boards (in conjunction with TESCON PRIMER) to pipes of vent tiles.
The size of ROFLEX exto makes it easy to bond to the roof lining under the positioned vent tile. If required, the grommet can be cut to flexibly adapt to the respective sealing situation. The adhesive patch is permeable. The impermeable EPDM section is reduced to the necessary extent.

Technical specs

Backing Special PP fleece with EPDM
Adhesive water-resistant SOLID adhesive
Release film centrally divided silicone-coated PE film
Property Value Regulation
Colour light blue
Thickness about 1.2 mm ; 47 mils
Pipe diameter 100 - 120 mm ; 4” - 4.75”
Outdoor exposure 6 months
Bonding requirement, non-aged/aged passed DIN 4108-11
Application temperature above -10 °C ; 14 °F
Temperature resistance EPDM permanent -40 °C to 150 °C ; -40 °F to 300 °F
Storage cool and dry