Pitch Of House Roof

Knowing the pitch of your roof is useful when designing an addition installing skylights or cutting new rake boards.

Pitch of house roof.

Typical roof pitch is actually the measure of the roof s slope expressed in ratio. Although there is no single standard roof pitch used on all sloped roofs factors such as roofing materials and local climate help to determine the appropriate range of pitches for a given building. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. A gable roof is a traditional triangle shaped roof that can range from a medium pitch to sharp angled roofs.

It is often compared to slope but is not exactly the same. Arctan 3 12 14 0 the primary purpose of pitching a roof is to redirect water and snow. Roof pitch is a measurement of a roof s slope expressed as a ratio. The exact roof slope in degrees is given by the arctangent.

Thus pitch is typically greater in areas of high rain or snowfall. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. The slope of the roof on this modern pond side house allows the solar panels to take in as much energy as possible and lets rain water fall back into the pond to help with drainage around the house. A frame roof is the sharpest gable style roof resembling the shape of the letter a.

Roof pitch designations are comprised of two numbers indicating a ratio. There is no standard universal roof pitch roof pitch varies depending on culture climate style and available materials in the usa the range of standard pitches is anywhere between 4 12 and 9 12 in the uk the typical house has a pitch between 40 50 although 45 should be avoided. The steep roof of the tropical papua new guinea longhouse for example sweeps. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.

How to measure roof pitch. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. Or the colon can replace the slash as in 2 12 or 7 12. It is a traditional roof shape employed everywhere from tropical huts to nordic ski chalets.

To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. Roof pitch defined and explained. What is the standard pitch for a roof. Here s an easy safe way to determine the pitch from inside your attic.

In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. Some well defined standards are followed while deciding about roof pitch but in actuality the slope depends upon the type of roofing material and climatic conditions of the area. Pitch is the term used to describe the angle slope or slant of your roof.