2 12 Roof Slope

Simply put it s a shallow roof.

2 12 roof slope.

Roof pitch defined and explained. Modified bitumen roofing requires a minimum roof pitch of 1 4 12 or greater. 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. The table below shows common roof pitches and the equivalent grade degrees and radians for each.

Pitch is the term used to describe the angle slope or slant of your roof. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Roof pitch designations are comprised of two numbers indicating a ratio. Or the colon can replace the slash as in 2 12 or 7 12.

A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. 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. Most roof s have a pitch in the 4 12 to 9 12 range.

Lapped nonsoldered seam metal roofs with applied lap sealant must have a minimum roof slope of 1 2 12. Definitions vary on when a roof is considered pitched. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. 2 12 roof pitch angle 9 46 degrees.

Roof pitch is a term describing how steep or flat your roof slope is. Standing seam roof systems must have a minimum roof slope of 1 4 12. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. Asphalt shingles continue to be the most widely installed roof covering option in north america.

Thermoset and thermoplastic single ply roofing requires a minimum roof pitch of 1 4 12 or greater. 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. If a roof rises 2 in a length of 12 this is 2 12 roof pitch. Arctan 3 12 14 0 the primary purpose of pitching a roof is to redirect water and snow.

Thus pitch is typically greater in areas of high rain or snowfall. The exact roof slope in degrees is given by the arctangent.