What is a Built-Up Roof?
Built-up roofing is a generic term for a roof system that is built by adding layers. It is most often made from alternating layers of roofing felt along with other various roofing materials, including coal tar pitch, asphalt, cold application adhesive, and modified asphalt. It is also sometimes called a "tar and gravel" roof because it can be finished off with a final layer of gravel, crushed rock, or other mineral substance, in order to minimize sun damage.
Common Failures For Built-Up Roofs
Some of the most frequent issues with built-up roofs are cracks in the material and damage to flashing and caps. Drains can also become trouble areas on built-up roofs when seals deteriorate and need to be replaced.
The Grand View Solution
How do I know if my roof needs repair?
Check out these 6 signs that show how your roof is wearing out.