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.
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.
The pitch of a roof is its vertical rise over its horizontal span.
This is the slope of geometry stairways and other construction disciplines or the trigonometric arctangent function of its decimal.
The same roof has a 4 12 or 1 3 pitch.
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 basic methods of pitched roof construction.
There are two main types of roof construction.
Pitched or sloping roofs.
This type of construction involves the use of factory made frames called tresses.
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.
Pitched roof construction.
Roofing a illustrated glossary of roofing terms used in the building trade.
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.
Alternatives to natural slate are manmade alternatives some are lighter.
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Another pitched roof construction manner is the truss roof method.
A flat roof is made of six basic components.