2 12 Roof Slope

The table below shows common roof pitches and the equivalent grade degrees and radians for each.

2 12 roof slope.

Modified bitumen roofing requires a minimum roof pitch of 1 4 12 or greater. 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. 2 12 roof pitch angle 9 46 degrees. Roof pitch defined and explained.

If a roof rises 2 in a length of 12 this is 2 12 roof pitch. Pitch is the term used to describe the angle slope or slant of your roof. Arctan 3 12 14 0 the primary purpose of pitching a roof is to redirect water and snow. 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.

In degrees 10 2 in 12 or 1 in 6 is considered a minimum. Definitions vary on when a roof is considered pitched. Most roof s have a pitch in the 4 12 to 9 12 range. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance.

Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. The exact roof slope in degrees is given by the arctangent. Or the colon can replace the slash as in 2 12 or 7 12. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.

Simply put it s a shallow 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. Roof pitch designations are comprised of two numbers indicating a ratio. Lapped nonsoldered seam metal roofs with applied lap sealant must have a minimum roof slope of 1 2 12.

The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Asphalt shingles continue to be the most widely installed roof covering option in north america. Thus pitch is typically greater in areas of high rain or snowfall.

Standing seam roof systems must have a minimum roof slope of 1 4 12. Roof pitch is a term describing how steep or flat your roof slope is.