Tar And Gravel Roof Weight

Tar and gravel roofing is the generic name for a built up roofing system used on low slope roofs. What are tar gravel roofs or built up roofs. A built up roof for example will typically include the built up membrane itself with or without gravel as well as some kind of insulation and cover board which will vary in thickness from roof to roof.

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A built up roof bur sometimes called a tar and gravel roof is a tried and true style of flat roof.

Tar and gravel roof weight.

Roofs with a rise of 3 inches for every 12 inches of run or less are candidates for a built up. Felt tar and gravel roofing 4 ply 5 3 lb m ft 2 25 9 kg m 2 felt tar and gravel roofing 5 ply 6 1 lb m ft 2 29 8 kg m 2 felt tar and slag roofing 3 ply 4 5 lb m ft 2 22 kg m 2. Top problems with tar and gravel commercial roofs added weight to structure. Tar and gravel roofs sometimes referred to as conventional built up roofing or bur roofs tar and gravel roofing is a system of flat roofing protection that is budget friendly and can have a lifespan of up to 30 years.

If you have a home with a flat roof a tar and gravel roof may be a good option for you. Per square in heavier than before. 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. Tar and gravel roofs add substantially more weight to the building structure.

This surface layer weighs down the built up roof protects it from sun exposure and serves as decoration. Gravel to protect built up roofs. This added weight can strain your roof underlying substrate and facility as a whole. A tar and gravel roof or built up roofing consists of several layers of waterproof material alternated with hot tar and a surface layer of mineral aggregate often smooth river stone.

When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary. Fundamental roof structure will be further stressed by an. Don t let your roofing budget go over board by hidden surprises understand what the average installed costs for tar and gravel roof is in your zip code by using our handy calculator. After you add the layers of tar supporting fabrics and the top layer of gravel your roof can be an extra 5 10 lbs.

Here alternating layers of roofing felt usually fiberglass and hot applied asphalt are combined to create a long lasting roof system. Tar and gravel roofing. A layer of gravel or small stones is applied on top of the final. Intensive roof weights range from 80 to 120 pounds per square foot.

Extensive roofs can weigh between 15 and 50 pounds per square foot. If you re looking for 2020 breakdown for cost of tar and gravel roof materials and what installation cost might be you ve come to the right place.