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2. List of commercially available roofing materials - Wikipedia

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

   Another advantage of copper roofing systems is that they are relatively easy to repair. 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.

3. Roof coating - Wikipedia

   en.wikipedia.org/wiki/Roof_coating

   Larger roofs with leaks and ponding water issues should be coated by a qualified professional. Additional roof coating products, such as foam or coatings designed for seams, may be required underneath the main coating layers. [citation needed] Supplement coating products are used to reinforce damaged or leak-prone problem areas.

4. Hot-dip galvanization - Wikipedia

   en.wikipedia.org/wiki/Hot-dip_galvanization

   Hot-dip galvanized steel strip (also sometimes loosely referred to as galvanized iron) is extensively used for applications requiring the strength of steel combined with the resistance to corrosion of zinc, such as roofing and walling, safety barriers, handrails, consumer appliances and automotive body parts.

5. Galvanization - Wikipedia

   en.wikipedia.org/wiki/Galvanization

   Galvanized surface with visible spangle. Galvanization (also spelled galvanisation) [1] is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which the parts are coated by submerging them in a bath of hot, molten zinc. [citation needed]

6. GAF Materials Corporation - Wikipedia

   en.wikipedia.org/wiki/GAF_Materials_Corporation

   In 2007, GAF merged with Elk Corporation, a manufacturer of asphalt felts and coatings. [11] In 2011, GAF became the first roofing manufacturer to offer a Lifetime Limited Warranty on all laminated shingles. [5] [6] GAF Energy, a sister company which offers affordable integrated rooftop solar options, was launched in 2019. [12]

7. 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.