What is 3 layer torch down roofing?

A two-layer torch down roof consists of one base sheet and one smooth cap sheet. A three-layer torch down roof features the same base and cap sheets, as well as an additional cap sheet with a granulated surface.

How long do torched roofs last?

A Torch On roof lasts around 20 years and is virtually maintenance free, during that time. Torch On roofing provides many of the same benefits of traditional tar and gravel roofs.

What is a torch down roof?

Torch down roofing (sometimes referred to as “torch on” roofing) is so named because it requires an open-flame propane torch. In this installation method, sheets of modified bitumen are rolled out onto the roof, and a roofing professional uses a hand-held propane torch to heat the material and adhere it to the surface.

Are torch down roofs good?

Torch down roofing is still one of the most commonly used roofing types for flat commercial roofs. The official name of this type of roofing is modified bitumen. … Not only that it’s extremely durable because the combination of asphalt and resin makes it resistant to punctures and other damages.

What is 2 ply torch on roofing?

This roofing method involves torch-applied layers of polyester and fiberglass reinforced SBS membrane. … This system is durable and quick to install, but requires properly trained roofers.

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Can you walk on a torch down roof?

The torch-on roofing is extremely durable. It has a superior strength that it can resist tears and punctures due to various external factors like walking on the surface. In relation to this, it’s also low maintenance as you can leave it as is for many months without worrying about its condition.

Is torch down roofing expensive?

Torch down roofing costs range from $3 to $6 per square foot fully installed. Each torch down roof is comprised of a number of bitumen, polyester and fiberglass layers.

What is best covering for flat roof?

EPDM Membranes

Quite possibly the best flat roofing membrane, EPDM is a relatively low-cost flat roof material that offers a number of significant advantages. Clean, straightforward installation, incredible strength, a long lifespan, and a smart finish combine to make EPDM membranes a difficult one to beat.

What is GTA roofing?

CertainTeed Flintlastic® GTA is designed for use as a roofing membrane over various types of substrates for both new construction and reroofing installations. It is suitable for most low sloped roof decks and may be used for roof system flashings including wall treatments, base flashings and field flashings.

How thick is torch down roofing?

Torch down roofing also has a consistent thickness (about 3-4 mm) across the entire roof, unlike other roofing materials that may vary in thickness. This conformity across the roof surface makes for a more durable roof.

Do you need underlay for torch on felt?

The torch-on felt solution relies on a three-layer system, which will require two levels of underlay underneath the cap sheet.

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Is TPO better than modified bitumen?

Unless you are on an extremely restricted budget and need the cheaper roofing material right now, TPO is a superior choice. When it comes to which is the better material, TPO wins on most points. Despite that, modified bitumen is still around, and there are still roofers who are happy to work with it.