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A shingle is the generic term for an individual roofing unit that is applied with other such units in an overlapping fashion. [2] Wood shingle, shingles sawn from bolts of wood such as red cedar which has a useful performance life expectancy of up to 30 years. However, young growth red cedar has a short life expectancy and high cost.
Concerned about the quality of bituminous materials used in built-up tar and asphalt roofs, Northern Chemical Company began marketing and installing single-ply rubber (EPDM) roof systems. The newly developed EPDM polymer was both durable and waterproof. It was a cost-effective solution to the increasing costs associated with built-up roofing.
These were the forerunners of the present asphalt and coal-tar-pitch built-up roofs. It is not known definitely when felt was first substituted for sheathing paper or when asphalt was first used as the impregnating agent, but it is known that the first asphalt-prepared roofing, that is, roofing manufactured ready to apply, was marketed in 1893.
Replacing the roofing felt on a Scout hall in Wales. Bituminous waterproofing systems are designed to protect residential and commercial buildings.Bitumen (asphalt or coal-tar pitch) is a material made up of organic liquids that are highly sticky, viscous, and waterproof. [1]
Owens Corning is an American company that develops and produces insulation, roofing, and fiberglass composites and related materials and products. It is the world's largest manufacturer of fiberglass composites. [3] [4] It was formed in 1935 as a partnership between two major American glassworks, Corning Glass Works and Owens-Illinois. The ...
GAF is an American manufacturing company based in Parsippany, New Jersey. [1] Operating as a subsidiary of Standard Industries, GAF is the leading roofing and waterproofing manufacturer in North America, with 30 locations across the U.S. GAF produces both commercial and residential roofing products, as well as pavement coatings.
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