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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. Flat roof - Wikipedia

    en.wikipedia.org/wiki/Flat_roof

    It is typically limited to applications on dead level or flat roofs with slopes of 1 ⁄ 4 in 12 (1:48) or less. It is the only roofing material permitted by the International Building Code to be applied to slopes below 1 ⁄ 4 in 12; the code allows its use on roofs with slopes as low as 18 in 12 (1:96). [25]

  4. Metal roof - Wikipedia

    en.wikipedia.org/wiki/Metal_roof

    Standing seam 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.

  5. Corrugated galvanised iron - Wikipedia

    en.wikipedia.org/wiki/Corrugated_galvanised_iron

    It is important for the pitch and depth to be quite uniform, in order for the sheets to be easily stackable for transport, and to overlap neatly when joining two sheets. Pitches have ranged from 25 mm (1 inch) to 125 mm (5 inches). It was once common for CGI used for vertical walls to have a shorter pitch and depth than roofing CGI.

  6. Domestic roof construction - Wikipedia

    en.wikipedia.org/wiki/Domestic_roof_construction

    Building codes in the U.S. specify ventilation rates as a minimum of 1 sq ft (0.093 m 2) of opening per 150 sq ft (14 m 2) (1:150) with a ratio of 1:300 in some conditions. [8] Warm air rises, so ceiling insulation is designed to have a higher r-value and the insulation is often installed between the ceiling joists or rafters.

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  8. Tar paper - Wikipedia

    en.wikipedia.org/wiki/Tar_paper

    Tar paper is used as a roofing underlayment with asphalt, wood, shake, and other roof shingles as a form of intermediate bituminous waterproofing.It is sold in rolls of various widths, lengths, and thicknesses – 3-foot-wide (0.91 m) rolls, 50 or 100 feet (15 or 30 m) long and "15 lb" (7 kg) and "30 lb" (14 kg) weights are common in the U.S. – often marked with chalk lines at certain ...

  9. Copper in architecture - Wikipedia

    en.wikipedia.org/wiki/Copper_in_architecture

    In Europe, phosphorus de-oxidized non-arsenical copper is used with the designation C106. The copper is rolled to thicknesses ranging between 0.5 and 1.0 mm (1 ⁄ 64 and 3 ⁄ 64 in) (1.5–3.0 mm or 1 ⁄ 16 – 18 in for curtain walling) but a 0.6–0.7 mm (3 ⁄ 128 – 1 ⁄ 32 in) thickness is usually used for roofing. [11] Alloyed ...

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