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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. John Altmeyer ...
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Shingle fabrication was revolutionized in the early 19th century by steam-powered sawmills. Shingle mills made possible the production of uniform shingles in mass quantities. The sawn shingle of uniform taper and smooth surface eliminated the need to hand dress. The supply of wooden shingles was, therefore, no longer limited by local factors.
A shingle roof in Zakopane, Poland. With an area of 6000 m 2 (1½ acres), it was one of the largest wooden shingle roofs in Europe. A roof’s shingles are a roof covering consisting of individual overlapping elements. These elements are typically flat, rectangular shapes laid in courses from the bottom edge of the roof up, with each successive ...
The color of slate tiles is a result of the amount and type of iron and organic material that are present, and most often ranges from light to dark gray. Some shades of slate used for roofing can be shades of green, red, black, purple, and brown.
Grand Scenic Divide is a 5,667-foot-elevation (1,727-meter) ridge located in the Grand Canyon, in Coconino County of northern Arizona, Southwestern United States. [2] It is situated immediately north of Fossil Mountain , and 1.5 mile east of Mount Huethawali .
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Mathis, A, and C Bowman (2007) The Grand Age of Rocks: The Numeric Ages for Rocks Exposed within Grand Canyon, Grand Canyon National Park, Arizona, National Park Service, Grand Canyon National Park, Arizona. Noble, FL (1914) Geologic Map and Section of the Shinumo Quadrangle, Arizona.