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2. 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.

3. Nail (fastener) - Wikipedia

   en.wikipedia.org/wiki/Nail_(fastener)

   In woodworking and construction, a nail is a small object made of metal (or wood, called a tree nail or "trunnel") which is used as a fastener, as a peg to hang something, or sometimes as a decoration. [ 1 ] Generally, nails have a sharp point on one end and a flattened head on the other, but headless nails are available.

4. Copper (color) - Wikipedia

   en.wikipedia.org/wiki/Copper_(color)

   This is an accepted version of this page This is the latest accepted revision, reviewed on 15 September 2024. Orange brown color This article is about the color. For other uses, see Copper (disambiguation). Copper is a reddish brown color that resembles the metal copper. Copper Crystallized copper metal Color coordinates Hex triplet #B87333 sRGB B (r, g, b) (184, 115, 51) HSV (h, s, v) (29 ...

5. 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.

6. Copper in architecture - Wikipedia

   en.wikipedia.org/wiki/Copper_in_architecture

   Copper roofs are often one of the most architecturally distinguishable features of these structures. [9] Today, architectural copper is used in roofing systems, flashings and copings, rain gutters and downspouts, building expansion joints, wall cladding, domes, spires, vaults, and various other design elements.

7. List of copper alloys - Wikipedia

   en.wikipedia.org/wiki/List_of_copper_alloys

   Example of a copper alloy object: a Neo-Sumerian "Foundation Nail" of Gudea, circa 2100 BC, made in the lost-wax cast method, overall: 17.5 x 4.5 x 7.3 cm, probably from modern-day Iraq, now in the Cleveland Museum of Art (Cleveland, Ohio, USA) Copper alloys are metal alloys that have copper as their principal component.