Commercial Roofing - Built-up Roofing (Tar & Gravel)
The conventional tar and gravel roof is actually a composite of felt paper and oxidized asphalt. The newer tar and gravel roof systems utilize many different products in their assemblies. Due to the decreasing quality of the roofing felt paper and the oxidized asphalt, other products have begun to emerge as carriers (felts) and adhesives (asphalt). Most recently the development of rubberized asphalt as a base adhesive as well as glass or composite ply felts as a carrier for the asphalt, to prevent it from moving on the roofs surface, has resulted in high quality roof systems with a traditional "tar and gravel" appearance. New age tar and gravel roof systems greatly outperform their earlier counterparts and provide the lasting durability that a home or building owner desires. Pictured above is a tar and gravel roof assembly utilizing asphalt and SBS rubberized felts. Life cycle costs for a roof system such as the one shown above are extremely low.
Built-up Roofing (Tar & Gravel) Examples
Built-Up Roofing (Tar & Gravel) - 2-ply SBS - Mopped & Graveled
Built-Up Roofing (Tar & Gravel) - 4-ply Organic