Roof Underlays

Waterproof underlays (felt) with thermal insulation capabilities


foundation systems
  • Vapour permeable roofing underlay protects even in extreme conditions.

  • DELTA-MAXX ensures extremely sure footing when working with ladders on roof battens.

  • Easy installation with its squared surface pattern: helps to cut straight edges.


foundation systems
  • The clever combination for a protected pitched roof. 3-layer underdeck and formwork track. For roofs with or without hard boarding. Perfect underlayment for shingle roofs and long span roofs.

  • Consists of a tear-resistant, vapor-permeable PP spunbonded film combination

  • Meets all requirements of the ZVDH regulations and can be used for temporary cover.