Roofing Outlaw 4.5kg SBS Modified Bitumen Torch-On Felt is a heavy-duty charcoal mineral cap sheet built for strength, flexibility and long-term waterproofing. Manufactured using a high-tech calendaring process, it saturates and coats a non-woven polyester carrier with SBS elastomer-modified bitumen, giving you the movement tolerance and reinforcement a flat roof actually needs.

The result is a membrane that handles thermal movement, mechanical stress and impact without cracking or tearing.