Hot Mop Roof Layers How Many

A hot mop roof is only used on flat and low roofs they are sometimes called tar and gravel roof while the installation process can be a messy one the price is exceptionally appealing to many homeowners.

Hot mop roof layers how many.

This hot mop roofing application is seen almost entirely in commercial buildings. Slate roofing 1 4 inch slates. A built up hot mop roof consists of layers of felt and asphalt over a bed of rosin paper. A 2 ply hot mop underlayment protected from sunlight might last longer.

Hot mopped roofs are durable low cost options compared with others types of roofs. The hot asphalt is laid out evenly with a large heated mop over the surface. Torch down roofing on the other hand consists of fewer steps and. They are designed for roofs with shallow pitches where the rise is no more than 4 inches in every 12 inches.

Slate roofs national slate association 1926. This may sound simple but there many different possibly hundreds of variations of built up and hot mop roofing. Slate roofing 3 16 inch slates. Advantages of torch down roofing.

This creates various layers which are then finished with a layer of gravel. With a base sheet plus three layers you can expect from 600 850 a square depending on installation requirements. There are many advantages to torch down roofing. Good workmanship especially around flashings is critical for a long service life.

Hot mop roofs use a combination of felt and asphalt. Slate roofs national slate association 1926. However roofing professionals installing a hot mop system may be exposed to fumes longer and need to take precautions to protect themselves. It involves spreading a layer of hot asphalt on the base layer of the roof.

Usually hot mopped is less expensive to install than torch down. To install hot mop roofing roofers lay a synthetic base layer top it with a felt layer. Hot mopped roofing cost vary depending on the quality and layers of roofing you are having applied. A modified bitumen cap sheet is then applied to the asphalt and both layers are nailed to the roof.

This roof is actually an arrangement of various layers of felt and asphalt finally topped off with a layer of gravel. Comes with a warranty that is viewed as above average. Slate roofs national slate association 1926. Slate roofing 3 8 inch slates.

On a flat roof the top layer should should have gravel a mineral surfaced cap sheet or a reflective aluminum coating. The pros of the hot mop option. At the same time a 90lb felt or modified bitumen cap sheet which is a type of asphalt that is modified with rubber or fiber is applied onto the hot asphalt. The asphalt is applied to the roof using a heated mop.

It s also called hot mop roofing or built up roofing because of the techniques used.