Pitched Roof Construction Terms

Usually suitable for pitched roofs with a slope of 23 or greater larger slates can be used for even lower slopes.

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. 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. There are two main types of roof construction. Roofing a illustrated glossary of roofing terms used in the building trade.

Pitched or sloping roofs. A roof comprising a mono pitched roof or for larger buildings series of clarification needed mono pitched roofs with vertical surfaces glazed and pitched upward in general terms away from the equator though other directions suit if direct sunlight is desired and where rooftop access may otherwise be impracticable. Unlike the cut roof method this method does not have a carpenter onsite creating pieces to be placed together on a roof. This type of construction involves the use of factory made frames called tresses.

Another pitched roof construction manner is the truss roof method. This is the slope of geometry stairways and other construction disciplines or the trigonometric arctangent function of its decimal. Alternatives to natural slate are manmade alternatives some are lighter. The terms pitch and slope are simply two different ways of expressing the same measurement.

This is the. The pitch of a roof is its vertical rise over its horizontal span. 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 same roof has a 4 12 or 1 3 pitch.

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.