Chesterfelt Deflector Underlay 16 x 1m Sand

Deflector 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 bitumen and the upper surface is finished in light sand. When incorporated in a suitably designed and installed multi-layer system, maintained in accordance with BS 8217:2005 – Reinforced bitumen membranes for roofing, Deflector Underlay will provide reliable performance.