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2. 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 ...

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. Gold–aluminium intermetallic - Wikipedia

   en.wikipedia.org/wiki/Gold–aluminium_intermetallic

   Au 5 Al 2 typically forms at 95% of Au and 5% of Al by mass, its melting point is about 575 °C, which is the lowest among the major gold-aluminum intermetallic compounds. AuAl 2 is a brittle bright-purple compound, with a composition of about 78.5% Au and 21.5% Al by mass.

5. List of named alloys - Wikipedia

   en.wikipedia.org/wiki/List_of_named_alloys

   Purple gold (aluminum) Rhodite ; Rose gold (copper) Tumbaga (copper) White gold (nickel, palladium) Indium. Field's metal (bismuth, tin) Iron Most iron alloys are ...

6. 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 ...

7. Membrane roofing - Wikipedia

   en.wikipedia.org/wiki/Membrane_roofing

   The finished roof's thickness is usually between 30 and 120 mils (thousandths of an inch; 0.75 mm to 1.50 mm). The most commonly used cured elastomer membranes are ethylene propylene diene monomer (commonly EPDM) and neoprene, although all thermoset products combined fail to account for more than 10% of all commercial roofing. This is in part ...

8. Chromate conversion coating - Wikipedia

   en.wikipedia.org/wiki/Chromate_conversion_coating

   The formula was meant to be dissolved in water at the concentration of 9.0 g/L, giving a bath with pH = 1.5. It yielded a light gold color after 1 min, and a golden-brown film after 3 min. The average thickness ranged between 200 and 1000 nm. [6] Iridite 14-2 is a chromate conversion bath for aluminum.

9. 2024 aluminium alloy - Wikipedia

   en.wikipedia.org/wiki/2024_aluminium_alloy

   Due to its high strength and fatigue resistance, 2024 is widely used in aircraft, especially wing and fuselage structures under tension. [6] [7] Additionally, since the material is susceptible to thermal shock, 2024 is used in the qualification of liquid penetrant tests outside of normal temperature ranges.