Built Up Tar And Gravel Roof

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

Built up tar and gravel roof.

First let s define what a tar gravel or built up roof bur is. It is comprised of several layers of asphalt saturated felt which are layered in opposite directions then covered with hot asphalt roof coating. This is called built up roofing. Here alternating layers of roofing felt usually fiberglass and hot applied asphalt are combined to create a long lasting roof system.

It also has a layer of bitumen and an aggregate top layer. Built up roof bur tar and gravel roofing built up roof bur systems or tar gravel as more commonly known in layman s terms is a multiple ply roof system consisting of plies of roofing ply sheets or felts installed on the rooftop with inter ply moppings of asphalt. It s been used for well over 100 years. 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.

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. 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. While the asphalt is still hot gravel is typically spread over the roof to deflect heat and light and to protect the felt and asphalt which provides the actual water proofing. It s made up of 3 to 5 laminated layers hot tar and roofing felt.

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.