Pitched Roof Construction Terms

The pitch of a roof is its vertical rise over its horizontal span.

Pitched roof construction terms.

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. Pitched roof construction. A flat roof is made of six basic components. Pitched or sloping roofs.

Another pitched roof construction manner is the truss roof method. Unlike the cut roof method this method does not have a carpenter onsite creating pieces to be placed together on a roof. 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. 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.

The terms pitch and slope are simply two different ways of expressing the same measurement. Roofing a illustrated glossary of roofing terms used in the building trade. There are two basic methods of pitched roof construction. Usually suitable for pitched roofs with a slope of 23 or greater larger slates can be used for even lower slopes.

The same roof has a 4 12 or 1 3 pitch. This type of construction involves the use of factory made frames called tresses. There are two main types of roof construction. Alternatives to natural slate are manmade alternatives some are lighter.

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.