Standard House Roof Slope

Roof pitch is a measurement of a roof s slope expressed as a ratio.

Standard house roof slope.

A standard roof pitch ensures perfect safety to construction because it creates effective water drainage mechanism. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof. The exact roof slope in degrees is given by the arctangent.

Most roof s have a pitch in the 4 12 to 9 12 range. What is the standard pitch for a roof. Thus pitch is typically greater in areas of high rain or snowfall. This is the distance between trusses.

Although there s isn t any standard pitch of a roof used on all kinds of sloped roofs you can determine the range of pitches by using a roof angle calculator and by considering factors like the local climate and roofing materials. A mansard roof is a four sided gambrel roof with each side having a double slope of one steep slope and one shallow upper slope. The standard roof truss spacing is 2. The table below shows common roof pitches and the equivalent grade degrees and radians for each.

Contemporary houses often have flat roofs which shouldn. 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. Mansard roofs are a popular option for buildings wishing to maximize the amount of living space in the building providing the option to use the loft as an additional living space. Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio.

You will also incur additional costs because it is much harder to deck and shingle a roof that is 12 12 pitch versus a 4 12 roof. 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. But the size of pitch and type of slope depends upon so many factors including weather conditions of area as well as style of house. 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.

Definitions vary on when a roof is considered pitched.