Perfader is an oxidized bitumen macro-perforated base layer specially developed to allow installation of torch-on membranes in spot-bonded applications. The partial bonding of the waterproofing is secured by the perforations and by the anti-adherent polyester film on the bottom face.

Suitable for:

  • Refurbishment of old bituminous roofs or asphalt waterproofing
  • Non-accessible self-protected roofs or under heavy protection waterproofing 
  • Car parks waterproofing for light vehicles combined with Parafor Solo GS under a bitumen asphalt  
  • Vapor barrier for low, medium and high humid structures

Can be installed on:

  • Concrete or aerated concrete for new works
  • Old bitumen roof or asphalt waterproofing


Partial bonding: safe and even distribution of the bonding points
Provides high secured waterproofing
Easy and reliable installation for refurbishment projects
Perfect complement for single- or multi-layer waterproofing solutions
Excellent dimensional stability


Length (m) : 20
Width (m) : 1
Thickness (mm) : 1.2
Weight (kg) : approx. 21.3

Documents Type
Perfader Concrete Non-Accessible Roofs EN System Brochure Download
Perfader Product Description FR Product Description French Download
Perfader Datasheet EN Technical Datasheet English Download