Asphalt Tar And Gravel Roof

A top layer of bitumen and extra top mineral coating is also added.

Asphalt tar and gravel roof.

Light colored gravel is used to cover the dark layers. 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 acts as an adhesive when it cools. 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. The primary use of western colloid 298 asphalt emulsion roof coating is as a waterproofing compound for existing built up bur roofs modified bitumen coal tar pitch tpo epdm hypalon and gravel roofs that saves you from tearing off your existing roof. Heat and uv accelerate the deterioration of the asphalt roofing materials underneath the gravel. 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.

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. This type of roofing is generally reserved for flat or nearly flat commercial roofs that aren t necessarily visible from ground level. Tar and gravel roofs are usually made of 3 to 5 laminated layers of asphalt based sheets hot tar and roofing felt. The asphalt is then covered with a layer of gravel to protect it from uv radiation and heat.

This surface layer weighs down the built up roof protects it from sun exposure and serves as decoration. Pea gravel crushed rock and decorative rock white quartz are often dispersed into a flood coat of hot asphalt and applied over the top of the roof membrane.