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  2. List of commercially available roofing materials - Wikipedia

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

    Roofing material is the outermost layer on the roof of a building, sometimes self-supporting, but generally supported by an underlying structure. A building's roofing material provides shelter from the natural elements. The outer layer of a roof shows great variation dependent upon availability of material, and the nature of the supporting ...

  3. Roof pitch - Wikipedia

    en.wikipedia.org/wiki/Roof_pitch

    Display of roof pitches 1:12 through 18:12 A roof made of thatch, one of the oldest roofing materials, needs a steep pitch to drain properly Some types of stone roof have a very restrictive roof pitch, which can lead to leaking Working on roofs with pitches too steep for safety requires a staging of scaffolding boards secured with roof brackets A pitch gauge measuring the slope of an asphalt ...

  4. Asphalt shingle - Wikipedia

    en.wikipedia.org/wiki/Asphalt_shingle

    American Society of Civil Engineers ASTM D7158 is the standard most United States residential building codes use as their wind resistance standard for most discontinuous, steep-slope roof coverings (including asphalt shingles) with the following class ratings: Class D – Passed at basic wind speeds up to and including 90 mph (140 km/h); Class ...

  5. List of roof shapes - Wikipedia

    en.wikipedia.org/wiki/List_of_roof_shapes

    For steep tower roof variants use Pyramid roof. Pyramid roof: A steep hip roof on a square building. Pyatthat: A multi-tiered and spired roof commonly found in Burmese royal and Buddhist architecture. Tented: A type of polygonal hipped roof with steeply pitched slopes rising to a peak; Helm roof, Rhenish helm: A pyramidal roof with gable ends ...

  6. Mansard roof - Wikipedia

    en.wikipedia.org/wiki/Mansard_roof

    A mansard roof on the Château de Dampierre, by Jules Hardouin-Mansart, great-nephew of François Mansart. A mansard or mansard roof (also called French roof or curb roof) is a multi-sided gambrel-style hip roof characterised by two slopes on each of its sides, with the lower slope at a steeper angle than the upper, and often punctured by dormer windows.

  7. Gambrel - Wikipedia

    en.wikipedia.org/wiki/Gambrel

    Gambrel roof A cross-sectional diagram of a mansard roof, which is a hipped gambrel roof. A gambrel or gambrel roof is a usually symmetrical two-sided roof with two slopes on each side. The upper slope is positioned at a shallow angle, while the lower slope is steep.