Airtech System

When to specify...

When a high quality bitumen system is required, but  site conditions prohibit the use of hot works, Airtech is an extremely effective torch-free bitumen membrane solution using hot air welding at the laps. It can be specified in both warm and cold roof design on all normal types of deck construction and is equally suited to either new build or refurbishment projects.

Key features

  • 4mm thick, self-adhesive elastomeric bitumen cap sheet with hot air welding at the laps for a flame-free solution
  • Completely torch-free system
  • Able to withstand climatic extremes and temperature differences at the edges of ice and water; stable in extreme weather conditions for temperatures ranging from -30°C to +100°C when tested to the following European Standards; Cold bending test (EN 1109) and heat stability test (EN 1110)



1 Bauder KSO SN or Bauder KSO-P SN cap sheet KSO SN. Self-adhesive elastomeric bitumen capping sheet.
BauderTEC KSA DUO underlayer Self-adhesive elastomeric bitumen underlayer
PIR FA-TE or PIR tapered insulation (laid to falls) Bauder PIR FA-TE insulation is a rigid urethane foam insulation faced on both sides with aluminium foil. 

Bauder PIR tapered insulation provides falls to a roof instead of incorporating into structure.
4 BauderTEC KSD Mica Tear resistant, aluminium lined self-adhesive bitumen air & vapour control layer.

Cap sheet colours 

The BauderTEC KSO SN cap sheet is available in Autumn brown and Grey slate.

     Brown           Grey slate

The BauderTEC KSO-P SN cap sheet is available in charcoal grey.

Charcoal grey

Approvals, certification and guarantee

Environmental credentials

  • Bauder insulation is CFC and HCFC free with zero ODP
  • BRE Green Guide Generic A Rating (A+ to E scale) for PIR insulation
  • EPD certificate - Bitumen Membranes S-P-00414

Installation and maintenance

The quality and experience of the installing operative is paramount to ensuring a successful project. Bauder Approved Contractors are the only people fully trained and certified to install our products. They provide the necessary experience that our exceptional guarantee demands.

Go to approved contractor information ►
Go to maintenance advice ►

Safe2Torch industry initiativeBauder Torch-Free Detailing Methods 

Our torch-free detail design specifically delivers secure safe application techniques in the vicinity of combustible construction materials located on, or connected to, the roof such as timber substrates or upstands; abutments to cladding, roof tiles, slates or thatch; or even debris such as dry leaf material that is at risk from ignition.  The application methods meet NFRC Guidance Document 'Safe2Torch'
Go to Torch-Free Detailing ►


Contact us today about your project

Each project is unique in its requirements, but we have case studies and examples of our work available for you to look at. If you are looking for a bituminous membrane roof system, then get in touch with our team to discuss your project’s individual needs.