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2. Corrugated galvanised iron - Wikipedia

   en.wikipedia.org/wiki/Corrugated_galvanised_iron

   Corrugated galvanised iron (CGI) or steel, colloquially corrugated iron (near universal), wriggly tin (taken from UK military slang), pailing (in Caribbean English), corrugated sheet metal (in North America), zinc (in Cyprus and Nigeria) or custom orb / corro sheet (Australia), is a building material composed of sheets of hot-dip galvanised ...

3. Metal roof - Wikipedia

   en.wikipedia.org/wiki/Metal_roof

   A metal roof is a roofing system featuring metal pieces or tiles exhibiting corrosion resistance, impermeability to water, and long life. It is a component of the building envelope . The metal pieces may be a covering on a structural, non-waterproof roof, or they could be self-supporting sheets.

4. 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 ...

5. Sheet metal - Wikipedia

   en.wikipedia.org/wiki/Sheet_metal

   The larger the gauge number, the thinner the metal. Commonly used steel sheet metal ranges from 30 gauge to about 7 gauge. Gauge differs between ferrous metals and nonferrous metals such as aluminum or copper. Copper thickness, for example, is measured in ounces, representing the weight of copper contained in an area of one square foot.

6. Metal Building Manufacturers Association - Wikipedia

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

   Metal Building News became the industry's first tabloid-size trade publication when it began publishing in 1980. It is now called Metal Construction News, and in 1985, a second industry magazine began publishing, Metal Architecture. In 1990 MBMA member sales exceeded $1.5 billion and steel shipped was over 1.2 million tons.

7. CertainTeed - Wikipedia

   en.wikipedia.org/wiki/CertainTeed

   The company was established in 1904 as the General Roofing Manufacturing Company by George M. Brown in East St. Louis, Illinois, with $25,000 in start-up capital. In 1917, the company restructured, incorporated, and changed its name to the Certain-teed Products Corporation.