Two Side Slope Roof

A mansard roof also known as a french.

Two side slope roof.

Low slope roofs are from 0 to 3 12 in pitch. Also known as pitched or peaked roof gable roofs are some of the most popular roofs in the us. In other words if a roof has a span of 4 meters and a rise of 2 meters the pitch would be 1 2 or one half of the pitch. A roof slope of 7 12 is also good and can provide the additional benefit of helping minimize the effects of wind driven rain.

However from the wind uplift mitigation perspective a 7 12 roof slope can be considered as a two story building due to the higher overall steepness and profile of the roof. But most important is the roof pitch the angle or slope of the roof which can be expressed in fraction ratio or degrees and divides the rise by the span. See also roof pitch crow stepped corbie stepped stepped gable. So if your roof rises 4 inches for every 12 inches of horizontal length then the pitch of your roof is expressed as 4 12.

The result of joining two or more gabled roof sections together forming a t or l shape for the simplest forms or any number of more complex shapes. Check the surface of the. Slopes greater than 18 12 are found on a frame roofs and some mansard style. Take the measurement of the vertical.

Take a measurement of 12 inches using a level. If asphalt shingles are to be installed on a low slope roof special steps are required to avoid short roof life and roof leaks. Some sources consider low slope to include 3 12 pitch roofs. See low slope roofing.

A hip roof has slopes on all four sides. Before taking any measurements you must first confirm that it s safe to walk on your roof. Since it is half the span the angle of the roof would be 45 degrees. A ratio is the most common way of expressing roof pitch or roof slope but degrees are also possible.

A gable roof with its end parapet walls below extended slightly upwards and shaped to resemble steps. Roof pitch is the measurement of roof steepness.