Most houses with flat or nearly flat roofs are topped with built up roofing or tar and gravel roofing made from fiberglass based asphalt sheeting that is applied in layers with hot bitumen tar mopped on between each layer.
Tar and gravel roof.
The asphalt is then covered with a layer of gravel to protect it from uv radiation and heat.
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.
Get at least 3 5 estimates before hiring a tar and gravel roof contractor estimates are typically free unless it s a service call for a repair.
Expect the tar and gravel roof prices to fluctuate between various companies each and every company have different operation expenses and over head.
The standard roofing for this situation is built up from layers of hot tar and thick roofing felt and topped with a layer of gravel.
Heat and uv accelerate the deterioration of the asphalt roofing materials underneath the gravel.
Used in the united states for more than 100 years tar roofs were traditionally six ply meaning that they had six layers of roofing material.
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.
If you have a home with a flat roof a tar and gravel roof may be a good option for you.
Tar and gravel roofing is meant to be installed on buildings that have flat or low slope roofs i e.
Tar and gravel roof systems are traditionally comprised of several layers of coated felt that is built up and sealed together with asphalt bitumen or tar.
This is called built up roofing.