Foam Roofing Vs Tar And Gravel

Maintaining a flat roof is much more difficult.

Foam roofing vs tar and gravel. Sprayed polyurethane foam spf roofing is a probably the best of all the flat roofing options we have discussed here. Advantages of a tar and gravel roof. The final layer of a built up roofing system consists of stone or gravel. However with effective tar and gravel roof maintenance you can get 30 years from the roof.

Spf roofing is a roofing system that is spray applied directly to the existing roof surface. According to experienced and knowledgeable corpus christi tx roofing contractors modified bitumen is the successor to traditional tar and gravel roofs. It has a plethora of benefits associated with it and only a few drawbacks. A built up roof bur sometimes called a tar and gravel roof is a tried and true style of flat roof.

It provides excellent protection against uv rays and is an attractive option for windows and decks that overlook the roof. Said another way a roof requiring r19 insulation will receive about 3 inches of polyurethane foam. Also a tar and gravel roof is very rugged and safe to walk on. Tar roofs are heavy.

When you should not choose a tar gravel roof. Foam roofing can be rated with a r value of 6 25 per inch. The average tar and gravel roof life expectancy is 20 25 years on average. Foam roofs are extremely durable with high tensile and compressive strength.

Of all the flat roofing options a tar and gravel roof is the most economical. Did you know that the highest energy efficient roofing material available over 500 greater than tar gravel is foam roofing. Through out the bay area many homes were designed using flat roofs to create their unique look. Similar to a pebble beach or gravel ground garden flat roofs with tar and gravel are pleasing to the eyes.

Most tear offs are required because of the weight of existing roofing. 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. Flat roofing option 6. 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. 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. Gravel to protect built up roofs. Here alternating layers of roofing felt usually fiberglass and hot applied asphalt are combined to create a long lasting roof system.

Spray polyurethane foam spf roofing.