Hot Mop Roof Layers How Many

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Hot mop roof layers how many. 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. Torch down roofing on the other hand consists of fewer steps and. Hot mop roofs use a combination of felt and asphalt. To install hot mop roofing roofers lay a synthetic base layer top it with a felt layer.

The hot asphalt is laid out evenly with a large heated mop over the surface. Slate roofing 3 8 inch slates. This may sound simple but there many different possibly hundreds of variations of built up and hot mop roofing. 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.

To begin the hot mop process a layer of hot asphalt will be spread on top of the roof s base sheet. However roofing professionals installing a hot mop system may be exposed to fumes longer and need to take precautions to protect themselves. This hot mop roofing application is seen almost entirely in commercial buildings. Because installing hot mop roofing involves so many steps and requires the roofers to toil over molten tar the process is often more difficult than torch down roofing.

Hot mopped roofing cost vary depending on the quality and layers of roofing you are having applied. A built up hot mop roof consists of layers of felt and asphalt over a bed of rosin paper. The average lifespan for a 3 ply hot mop roof in florida 15 years. With a base sheet plus three layers you can expect from 600 850 a square depending on installation requirements.

The pros of the hot mop option. Slate roofing 3 16 inch slates. Slate roofs national slate association 1926. Good workmanship especially around flashings is critical for a long service life.

Slate roofs national slate association 1926. A 2 ply hot mop underlayment protected from sunlight might last longer. There are many advantages to torch down roofing. Hot mopped roofs are durable low cost options compared with others types of roofs.

It s also called hot mop roofing or built up roofing because of the techniques used. Slate roofs national slate association 1926. This creates various layers which are then finished with a layer of gravel. They are designed for roofs with shallow pitches where the rise is no more than 4 inches in every 12 inches.

This roof is actually an arrangement of various layers of felt and asphalt finally topped off with a layer of gravel. A modified bitumen cap sheet is then applied to the asphalt and both layers are nailed to the roof. Slate roofing 1 4 inch slates. Usually hot mopped is less expensive to install than torch down.

Advantages of torch down roofing.