2 12 Roof Slope

Most roof s have a pitch in the 4 12 to 9 12 range.

2 12 roof slope.

Or the colon can replace the slash as in 2 12 or 7 12. Lapped nonsoldered seam metal roofs with applied lap sealant must have a minimum roof slope of 1 2 12. Roof pitch defined and explained. Thermoset and thermoplastic single ply roofing requires a minimum roof pitch of 1 4 12 or greater.

Thus pitch is typically greater in areas of high rain or snowfall. Modified bitumen roofing requires a minimum roof pitch of 1 4 12 or greater. Asphalt shingles continue to be the most widely installed roof covering option in north america. In degrees 10 2 in 12 or 1 in 6 is considered a minimum.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. The exact roof slope in degrees is given by the arctangent. Pitch is the term used to describe the angle slope or slant of your roof. The table below shows common roof pitches and the equivalent grade degrees and radians for each.

2 12 roof pitch angle 9 46 degrees. Simply put it s a shallow roof. The combination of two numbers are used to display or show the roof pitch. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.

Roof pitch is a term describing how steep or flat your roof slope is. 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. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.

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. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. Arctan 3 12 14 0 the primary purpose of pitching a roof is to redirect water and snow. Roof pitch designations are comprised of two numbers indicating a ratio.

That means the roof doesn t shed water as easily as steeper roofs which is why choosing the right type of roofing material is so important. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.