Installing a Modified Bitumen 2 Ply Torch Down Rubber Membrane over an existing Tar and Gravel is the most cost-effective way to replace a flat roof. There is no need to remove the existing roof because the fiberglass is anchored to it and performs as a barrier between the 2 ply rubber membrane that is placed over it and fused together with a torch. Installing a Torch Down Rubber roof over tar and gravel will: 1. Save the expense of tear down and hauling away of the old roof 2. Save on labor cost 3. Save on material cost 4. Provide an added insulation Video Rating: / 5 Related PostsFlat Roof Installation Over Tar and Gravel – most effective recover roofing systemFirestone EPDM Rubber Roofing Installation on a Flat RoofWeston – Installing a Rubber roof over gravel roof. Fast and easy. RidgefieldRoll roofing installation, Flat roof installation step by step ,must watch!SPR Single Ply Recover for flat roofsRoll Roofing , how to install a basic flat roof, torch down roofing !