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Bonnet roof: A reversed gambrel or Mansard roof with the lower portion at a lower pitch than the upper portion. Monitor roof: A roof with a monitor; 'a raised structure running part or all of the way along the ridge of a double-pitched roof, with its own roof running parallel with the main roof.' Butterfly roof (V-roof, [8] London roof [9]): A ...
The oldest surviving framed house in North America, the Fairbanks House, has an ell with a gambrel roof, but this roof was a later addition. Claims to the origin of the gambrel roof form in North America include: Indigenous tribes of the Pacific Northwest, the Coast Salish, used gambrel roof form (Suttle & Lane (1990), p. 491). [10]
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.
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 ...
A piece added at the foot to create an overhang or change the roof pitch is called a sprocket, or coyau in French. The projecting piece on the gable of a building forming an overhang is called a lookout. A rafter can be reinforced with a strut, principal purlin, collar beam, or, rarely, an auxiliary rafter (see below).
Dutch Colonial is a style of domestic architecture, primarily characterized by gambrel roofs having curved eaves along the length of the house. Modern versions built in the early 20th century are more accurately referred to as "Dutch Colonial Revival", a subtype of the Colonial Revival style.
New England barns are usually a type of bank barn, built into the side of a hill giving ground level access to one side, but a ramp or rarely a bridge were used to access the doors. The roof form is typically a gable roof but some New England barns were built with a gambrel roof.
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 ...