Pitch Range For Metal Roof

The pitch is measured in inches of vertical rise per foot of horizontal run and the 5v crimp profile shown above requires a minimum slope of three in twelve or 3 12 3 inches vertically per 12 inches horizontally.

Pitch range for metal roof.

A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. Panels joined with an applied lap sealant can go as low as 12. Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs. For every 12 horizontal feet the roof changes 8 feet in vertical height.

The most commonly used roof pitches fall in a range between 4 12 and 9 12. For most home styles roof pitches fall in a range 4 12 a moderate slope up to 8 12 fairly steep. With regards to metal roofing the profile refers to the shape adopted by the metal sheets when they are bent to form the panels. To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope.

The minimum roof slope for metal roofs is dependent upon the roof profile. In the uk the typical house has a pitch between 40 50 although 45 should be avoided. Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled. The minimum pitch for metal roof shingles and lapped non soldered panels is 3 12.

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. Minimum pitch for metal roof. Examples of extreme slopes range from 1 4 12 almost flat to 12 12 sloping down at a perfect 45 degree angle. After that the miimum pitch for metal panels depending on the methods used to join the panels.

Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. There is no standard universal roof pitch. Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

In the usa the range of standard pitches is anywhere between 4 12 and 9 12. What is the minimum pitch slope for a metal roof. Profile in the context of metal roofing means the shape that the sheet of metal is bent into to form the panels. Roof pitch varies depending on culture climate style and available materials.

Pitches above 9 12 are very highly angled and are designated steep slope roofs.