2 12 Pitch Metal Roof

Roof pitch defined and explained.

2 12 pitch metal roof.

We have a prairie style house in east tennessee mixed humid climate zone 4a built in the 1950s with a low slope roof pitch of 1 5 per 12. A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely makes the cut off for one of the most popular roofing material options. Roof pitch designations are comprised of two numbers indicating a ratio. If a roof rises 2 in a length of 12 this is 2 12 roof pitch.

That said if you want to have a metal roof that is worth its weight in value that doesn t come with a ton of problems the minimum pitch for metal roof applications should be kept at around at least a 3 1 2 12 three and a half on 12 or above. Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. Or the colon can replace the slash as in 2 12 or 7 12. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 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. 2 12 roof pitch angle 9 46 degrees. The roof 50.