Flat roofing comes in several different types, each with its own benefits and flaws. Following is a brief explanation of the flat roofing materials available. More detailed information can be acquired from Garvin Metal roofing.
Built Up Roof (BUR) – This is the most traditional of flat roofs, the one that most people are most familiar with. It is made up of three or more layers of waterproof material with hot tar placed between the layers. Gravel comprises the top layer. Built up roofs are highly resistant to fire, but are heavier than other types of flat roofs.
Modified Bitumen – This is a single ply type of roof that has a mineral-based surface, and it comes in two types – peel and stick, and torch-down. The torch-down method is far less common today than peel and stick, since it has been determined that the torch-down roof is more of a fire hazard. The light-colored mineral-based surface of this type of roof saves energy.
Rubber Membrane (EPDM) – Rubber membrane roofs have a few available options for installation. They can be held down by rocks, glued down, or stapled down by fasteners. It is a lightweight roof, but it also retains heat. The usual color of a rubber membrane is black, but it can be coated with lighter material to help reflect heat. This coating increase the cost of the roof by about thirty percent.
Garvin Construction Services
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