Pitched Roof Construction Terms

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Pitched roof construction terms.

Pitched roof construction. Alternatives to natural slate are manmade alternatives some are lighter. Unlike the cut roof method this method does not have a carpenter onsite creating pieces to be placed together on a roof. There are two main types of roof construction.

Pitched or sloping roofs. As the name suggests a flat roof is specially designed to sit as flat as possible on the top of a property typically having a pitch no greater than 15. This type of construction involves the use of factory made frames called tresses. However most often a ratio of pitch also fraction is slang used for the more useful slope of rise over run of just one side half the span of a dual pitched roof.

Roofing a illustrated glossary of roofing terms used in the building trade. A cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters ridge boards joists and purlins etc the exact details being determined by the size of roof size of timbers etc. Usually suitable for pitched roofs with a slope of 23 or greater larger slates can be used for even lower slopes. There are two basic methods of pitched roof construction.

The same roof has a 4 12 or 1 3 pitch. The pitch of a roof is its vertical rise over its horizontal span. A roof s slope is the number of inches it rises for every 12 inches of horizontal run a roof with a 4 in 12 slope rises 4 inches for every 12 inches of horizontal run. This is the slope of geometry stairways and other construction disciplines or the trigonometric arctangent function of its decimal.

Another pitched roof construction manner is the truss roof method.