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2. Metal Building Manufacturers Association - Wikipedia

   en.wikipedia.org/wiki/Metal_Building...

   The first standing seam metal roof [3] was introduced by Armco Steel Corp at the 1934 Century of Progress Exposition in Chicago. The use of pre-engineered buildings increased during World War II with the introduction and evolution of the Quonset Hut, a portable and inexpensive solution to housing and other needs.

3. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   Standing-seam metal roof with concealed fasteners. Mechanically seamed metal with concealed fasteners contains sealant in seams for use on very low sloped roofs, suitable for roofs of low pitch such as 0.5/12 to 3/12 pitch. Flat-seam metal with or without soldered seams. Steel coated with a coloured alloy of zinc and aluminium. Stone-coated ...

4. Metal roof - Wikipedia

   en.wikipedia.org/wiki/Metal_roof

   Standing seam metal roofs can have a lower pitch than asphalt shingle roofs because shingled roofs need a higher pitch to keep the wind from blowing up the shingles and potentially blowing them off in high winds. Standing seam metal roofs come in sheets up to or sometimes more than 30 feet (9.1 m) long and widths of 12, 14, 16 or 18 inches (300 ...

5. Roof seamer - Wikipedia

   en.wikipedia.org/wiki/Roof_seamer

   The Roof Runner® machine, manufactured in Sweden, was introduced by Butler Manufacturing for the MR-24® roof system. Progressive roller dies of the roof seamer are used to bend the metal roof panel seam into the desired shape to produce a finished seam profile. This shows a cross-section profile of the seam. Mechanically seamed standing seams ...

6. GAF Materials Corporation - Wikipedia

   en.wikipedia.org/wiki/GAF_Materials_Corporation

   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 ...

7. Category:Steel companies of the United States - Wikipedia

   en.wikipedia.org/wiki/Category:Steel_companies...

   Pages in category "Steel companies of the United States" The following 66 pages are in this category, out of 66 total. ... Scotland Manufacturing; Steel Dynamics; T.