Foam Roof Vs Tar And Gravel

Through out the bay area many homes were designed using flat roofs to create their unique look.

Foam roof vs tar and gravel.

The tar and gravel roof is built up of typically three to five layers of roofing felt. The final layer of a built up roofing system consists of stone or gravel. Built up roofs or burs also called a tar and gravel roof is a well established and popular style of flat roof that is made up of alternating layers of roofing felt or fiberglass and asphalt that is applied with heat which combine to make a long lasting sturdy roofing system. A plain tar and gravel roof also referred to as a built up roof or bur is quite different from modified bitumen.

Spray polyurethane foam spf roofing. Advantages of a tar and gravel roof. Said another way a roof requiring r19 insulation will receive about 3 inches of polyurethane foam. Of all the flat roofing options a tar and gravel roof is the most economical.

Your tar and gravel roof is a good. Also a tar and gravel roof is very rugged and safe to walk on. As each layer is applied and mopped down using hot tar between layers we end up with not a single membrane but a multiple ply. Foam roofing can be rated with a r value of 6 25 per inch.

It provides excellent protection against uv rays and is an attractive option for windows and decks that overlook the roof. If you are looking for an alternative to tar and gravel roofs that actually incorporates. The properly cleaned and prepare tar roof makes an excellent surface for a foam roof to adhere to. Gravel is an excellent fire retardant.

Spray polyurethane foam more commonly referred to as spf is a liquid that is sprayed on the existing roof and expands into a foam creating a solid layer across an existing roof. Foam roofs are extremely durable with high tensile and compressive strength. Maintaining a flat roof is much more difficult than standard pitched roofing. By texas a m laboratories.