Torch-On Underlay consists of a glass tissue carrier coated with polymer modified bitumen. The upper surface is finished with fine sand and the lower surface has a thermofusible film which rapidly melts during the torching operation.
Deflector underlay part of the flat roof waterproofing torch-on applied debotec range
A price leading system using modified bitumen (SBS) on glass fibre (underlay mat) and polyester re-enforcements (capping sheet).
