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The Best Materials for Flat Roofing

flat-roofing-contractor-material-los-angeles-services-1 Dec 15

The Best Materials for Flat Roofing

A flat roof offers great flexibility to your home by allowing you to use the roof space for a variety of purposes. There are many material options for flat roofing systems as well that add to usability and resourcefulness. Below are the most common materials used for flat roofing services.

Built-Up Roofing

Built-up roofing is the traditional option for flat roofs. It has been around for more than 120 years and has offered amazing solutions to many of the low-pitched roofing problems. Built-up roofing is installed using many layers of a particular type of roofing felt. This felt is impregnated with asphalt or tar and set in bitumen that is applied with a hot mop. The asphalt or tar material blends with the roofing felt and creates a massive roof membrane.

The process is repeated several times until the overlapping layers are thick enough as per the homeowner’s requirements. Finely crushed stone granules are applied to the roof surface to protect the built-up roofing system from harsh weather and UV light.

Modified Bitumen Roofing

Modified bitumen roofing was developed in the 60s as an alternative to a built-up roofing system. It incorporated the proven technology of built-up roofing with polymer reinforced cap sheets to provide a durable and strong roofing solution. Modified bitumen roofing can be installed using many different techniques depending upon the needs of the homeowner and the specific materials. The most common methods of installation include hot-applied, cold-applied, torch-applied, and self-adhered roofing installation.

The polymer material used in the roofing system offers better flexibility and elasticity to the roof under lower temperatures. The most common polymer materials used in modified bitumen roofing include atactic polypropylene and styrene butadiene styrene. The latter option gives a rubber-like quality to the roofing system, which is usually installed using the cold applied method. Atactic polypropylene is typically installed using the torch applied technology.

Single-Layer Membrane Roofing

Single-layer membrane or single-ply roofing is the latest technology that is more popular for commercial roofing services. There are many different varieties of single-layer membrane roofing, such as polychloroprene, ethylene propylene diene monomer (EPDM), polyvinyl chloride (PVC), polymer-modified bitumens, and chlorinated polyethylene and chlorosulfonated polyethylene sheets. Among these, EPDM, which uses synthetic rubber, is the most common option among residential roofing services.

Single-ply membrane roofing is installed as thin sheets onto the roof. As they are made of polymer material or synthetic rubber, the elasticity of the roofing system allows it to easily manage temperature changes. They also offer better protection to the home roofing by absorbing the impacts of a hailstorm and heavy rain.

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