Pitched Roof Terminology

If the unit of rise in inches is 3 then the cut is the unit of rise and the unit of run 12 inches or 3 12.

Pitched roof terminology.

A triangular wooden frame that supports the roof. Common terminology associated with pitched roofs include. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. Cement mortar filler on top of a chimney stack at the base of chimney pots or protruding flues.

Line length is the hyptenuse of the triangle whose base equals the total run and whose altitude equals the total rise. Margin the exposed area of a slate or tile usually the minimum is quoted by the manufacturer supplier and may vary for a given slate tile depending on slope of the roof and exposure although a different meaning the measurement is the same as the gauge. It is flat but pitched or on an angle. These are short spars that run from a hip to the eves or from a ridge to a valley.

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. These are the parts of a house s roof. 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.

It is a waterproofing layer made of regular felt stacked above the solid. The architectural parts of a pitched roof. Triangular upper part of wall at the end of a ridge roof hipped roof. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.

A low slope or flat seeming roof covered with alternating layers of roofing felt and hot mapped asphalt and topped off with a layer of gravel. Below are some commonly used terms that identify parts of a roof and types of roofing. Figure 2 2 roof framing terms. Hip end a sloping end to a pitched roof which is covered with slates or tiles.

The terms pitch and slope are simply two different ways of expressing the same measurement. 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. It is also called the field of the. This is the slope of geometry stairways and other construction disciplines or the trigonometric arctangent function of its decimal.

Roofs come in all sorts of shapes and sizes but you only need to know a handful of terms to describe their essential architectural features. The same roof has a 4 12 or 1 3 pitch. A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework. A term used to describe a pitched roof the ends of which are also sloped.

The portion of the roof projecting out from the side walls of the house. The horizontal top of the roof.