Gravel Roof House

Gravel is used on flat roofs for two reasons.

Gravel roof house.

Built up roof bur the traditional hot tar and gravel roof is built from three or more plies of waterproof material alternated with hot tar and ballasted by a layer of smooth river stone. Remember there are multiple styled homes in the u s from. Once made of tar paper these types of roofs gradually are using more advanced materials such as fiberglass membranes. A gravel layer that is 2 to 3 inches thick suffices and too much gravel can impede water s movement.

The tar is no longer used since the 70 s because of the risks and its toxicity. Built up roofing bur better known by their street name of tar gravel roofs bur is just that. Gravel roof advantages most gravel roofs are inexpensive to build offer some protection to vulnerable asphalt against uv damage and the stones are very durable. Each layer is hot mopped with liquid asphalt to form a.

Unlike ground covers such as organic mulch gravel does not absorb moisture. Built up roofing can include up to four plies or more consisting of alternating layers of bitumen asphalt coal tar or other adhesive with a topping aggregate layer of gravel or other materials. Red photo by istock. While bold a red roof can be a good fit for gray white and taupe house colors.

There are different types and weights of gravel used on flat roofs for these purposes. A multilayer asphalt and gravel roof membranes consist of asphalt and crushed stone. Darker reddish brown roofs often cap off redbrick and off white houses. Gravel particles shun precipitation allowing moisture to move away from the building s foundation.

The additional complexity of your roof will add to the tar and gravel roof. Gravel roof disadvantages on the other hand gravel roofs are hot energy inefficient heavy moisture trapping and unstable. Oakridge in desert tan about 97 per square. Asphalt roofs and crushed stone asphalt and gravel roof are an affordable solution for flat roofs with a quality and sustainability of about 20 years.

Tar and gravel roofs consist of several layers of asphalt impregnated building paper also called roofing felt applied over a plywood deck. To protect the underlying layer of roofing materials as is the case with built up roofs burs. To weigh down or secure the roofing material as is the case with single ply flat roofs. 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.