Common Roof Pitch Angles Australia

Standard roof pitches in australia are usually either 15 degrees or 22 5 degrees depending on the materials used in the roof.

Common roof pitch angles australia.

Common roof pitches and equivalent grade degree and radian angles most roof s have a pitch in the 4 12 to 9 12 range. Pitches above 9 12 are very highly angled and are designated steep slope roofs. These are utilized in residential applications. Hip a hipped roof has three four or more pitched planes depending on the shape of the house and all planes slope downwards from a ridge at the top of the roof.

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. Roof pitch calculator results explained. The most commonly used roof pitches fall in a range between 4 12 and 9 12. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled. Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs. Angle the angle of a roof is the same as the roof s slope except instead of being.

This type of roof is the most popular in australia. As a rule of thumb most solar installers state that your latitude is the best angle to mount solar panels to achieve maximum effiency. 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. Some of the most common roof pitch types are conventional slope type roofs designed with pitch ranging from 4 12 to 9 12.

Roof pitches exceeding the level of 9 12 or approximately 37 degrees are termed steep slope roofs. Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used. Outside of the u s a degree angle is typically used. Here are some of the most common ones used in australia.

Contemporary houses often have flat roofs which shouldn. So my latitude here in proserpine is 20 4 degrees close enough to the normal roof pitch of 22 5 that any loss of efficiency would be next to nothing. 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.