Chestertorch Felt-Torch-On Underlay 3mm Peak Film 12m x 1m

Peak Film/Film Underlay is a torch-applied underlay membrane which is designed to be used as part of a torch-applied built-up roofing system. It features a glass fibre core which is saturated and coated in SBS modified bitumen and the upper surface is finished with a burn-off film. When incorporated in a suitably designed and installed multi-layer system, maintained in accordance with BS 8217:2005 - Reinforced bitumen membranes for roofing, Peak Film/Film Underlay may be expected to last in excess of 10 years.

This product should be installed in accordance with manufacturer recommendations and all relevant national standards and codes of practice, including BS 8217:2005 – the code of practice for reinforced bitumen membranes for roofing. 

To complete a full system, Peak Film/Film Underlay is fitted above the venting base sheet, or a suitable preparation layer, prior to the final waterproofing layer. When used as part of a multi-layer built up roofing system, it provides longlasting waterproofing performance and is readily suited to various types of flat roofing projects, including new build and refurbishments, cold roofs and warm roofs using vapour
control layers with insulation.

• UKCA certified & CE Marked to EN 13707:2004+A2:2009.
• CE Certificate Number: 0086-CPR-595938.
• UKCA Certificate Number: 0086 CPR 753192.