Foam Roofing Vs Tar And Gravel

Also a tar and gravel roof is very rugged and safe to walk on.

Foam roofing vs tar and gravel.

The gravel on top of them can be even heavier. Spf roofing is a roofing system that is spray applied directly to the existing roof surface. A built up roof bur sometimes called a tar and gravel roof is a tried and true style of flat roof. Here alternating layers of roofing felt usually fiberglass and hot applied asphalt are combined to create a long lasting roof system.

It has a plethora of benefits associated with it and only a few drawbacks. However with effective tar and gravel roof maintenance you can get 30 years from the roof. Most tear offs are required because of the weight of existing roofing. Sprayed polyurethane foam spf roofing is a probably the best of all the flat roofing options we have discussed here.

Your tar and gravel roof is a good. Tar roofs are heavy. The average tar and gravel roof life expectancy is 20 25 years on average. 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 roofing can be rated with a r value of 6 25 per inch. All roofing materials can offer this particular perk but the most affordable ones are modified bitumen roofs and tar and gravel or built up roofing bur. Advantages of a tar and gravel roof. Said another way a roof requiring r19 insulation will receive about 3 inches of polyurethane foam.

Through out the bay area many homes were designed using flat roofs to create their unique look. Did you know that the highest energy efficient roofing material available over 500 greater than tar gravel is foam roofing. Spray polyurethane foam spf roofing. Foam roofs are extremely durable with high tensile and compressive strength.

When you should not choose a tar gravel roof. Maintaining a flat roof is much more difficult. Gravel to protect built up roofs. Of all the flat roofing options a tar and gravel roof is the most economical.

It provides excellent protection against uv rays and is an attractive option for windows and decks that overlook the roof. Flat roofing option 6. The final layer of a built up roofing system consists of stone or gravel. Gravel is an excellent fire retardant.

Foam roofing is the exception here as it is considered an overlay and the weight load on the structure is reduced with the foam roof installation.