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square metre. 9.29030. The square is an Imperial unit of area that is used in the construction industry in the United States and Canada, [1] and was historically used in Australia. One square is equal to 100 square feet. Examples where the unit is used are roofing shingles, metal roofing, vinyl siding, and fibercement siding products.
Roof shingles are a roof covering consisting of individual overlapping elements. These elements are typically flat, rectangular shapes laid in courses from the bottom edge of the roof up, with each successive course overlapping the joints below. Shingles are held by the roof rafters and are made of various materials such as wood, slate ...
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 ...
Asphalt shingles are an American invention by Henry Reynolds of Grand Rapids, Michigan. [2] They were first used in 1903, in general use in parts of the United States by 1911 and by 1939 11 million squares (100 million square meters) of shingles were being produced. [3] A U.S. National Board of Fire Underwriters campaign to eliminate the use of ...
Ctrs. means centers, a typical line to which carpenters layout framing. Domestic roof construction is the framing and roof covering which is found on most detached houses in cold and temperate climates. [1] Such roofs are built with mostly timber, take a number of different shapes, and are covered with a variety of materials.
The roof support, attached to the frame, serves as a fixing support for the roof elements. It is usually a lathing or boarding. Lathing is a network of horizontal wooden slats, square or rectangular in section, called battens. [3] In the presence of a flexible underlayment, counter-battens are placed under the lathing.
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