Modified Torch Down
Over the Top Roofing
Modified Torch Down Method
Torch down roofing is a type of roofing that consists of levels of modified bitumen–similar to asphalt–heat-adhered to layers of fiberglass. Used only for flat or nearly-flat roofs, torch down roofing is an excellent means of preventing moisture build-up and obviating the need for constant maintenance. Though not recommended for use in areas of especially heavy rain or snow, torch down roofing is generally available everywhere, and can be applied in a few hours with a relatively simple process.
The three types of membrane roofing include Synthetic Rubber (Thermoset), Thermoplastic Membrane and Modified Bitumen. These three application types of membrane roofing show distinct advantages over the previously more common flat roofing method of asphalt and gravel. In asphalt and gravel application, it can be very difficult to create a proper seal at all seams and connection points. This can cause a roof to leak early in its lifespan, and require much more maintenance. When installed correctly, newer materials are either seamless, or have seams as strong as the body. This eliminates most of the leakage concerns associated with flat roofing systems. Repairs for asphalt and gravel roofs can be problematic, largely because it is difficult to locate the exact point of a leak. Newer systems can be patched relatively easily because breaks and leaks are easier to locate.