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Roof pitch. Roof pitch is the steepness of a roof expressed as a ratio of inch (es) rise per horizontal foot (or their metric equivalent), or as the angle in degrees its surface deviates from the horizontal. A flat roof has a pitch of zero in either instance; all other roofs are pitched. A roof that rises 3 inches per foot, for example, would ...
Mansard (French roof): A roof with the pitch divided into a shallow slope above a steeper slope. The steep slope may be curved. An element of the Second Empire architectural style (Mansard style) in the U.S. Gambrel, curb, kerb: A roof similar to a mansard but sloped in one direction rather than both. Bell-cast (sprocketed, flared): A roof with ...
Flat roof in Los Angeles. Flat roof in Warszawa Centralna railway station in Poland (1975) A flat roof is a roof which is almost level in contrast to the many types of sloped roofs. The slope of a roof is properly known as its pitch and flat roofs have up to approximately 10°. [1] Flat roofs are an ancient form mostly used in arid climates and ...
Mansard roof. 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. [1][2][3] The steep roofline and windows allow for additional floors of habitable ...
Roof. A roof (pl.: roofs or rooves) is the top covering of a building, including all materials and constructions necessary to support it on the walls of the building or on uprights, providing protection against rain, snow, sunlight, extremes of temperature, and wind. [1] A roof is part of the building envelope.
A warm roof is a roof that is not ventilated, [9] where the insulation is placed in line with the roof pitch. [10] A hot roof is a roof designed not to have any ventilation and has enough air-impermeable insulation in contact with the sheathing to prevent condensation [11] such as when spray foam insulation is applied directly to the under-side ...
Cricket (roofing) A cricket or saddle is a ridge structure designed to divert water on a roof around the high side of a large penetration, typically a skylight, equipment curb, or chimney. [1] In some cases, a cricket can be used to transition from one roof area to another. On low-slope and flat roofs with parapet walls, crickets are commonly ...
Hip roof. A hip roof, hip-roof[1] or hipped roof, is a type of roof where all sides slope downwards to the walls, usually with a fairly gentle slope, with variants including tented roofs and others. [2] Thus, a hipped roof has no gables or other vertical sides to the roof. A square hip roof is shaped like a pyramid.