Tar And Gravel Roof Construction

No more than 3 inches of rise for every 12 inches of length.

Tar and gravel roof construction. This surface layer weighs down the built up roof protects it from sun exposure and serves as decoration. 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. 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. The average roofing installation price for a tar gravel built up roof costs anywhere between 3 750 to 6 750 depending on the slope pitch and size of your roof.

Tar gravel roof costs. Tar and gravel roofing is meant to be installed on buildings that have flat or low slope roofs i e. You can expect to pay 2 50 to 4 00 per sq.