2 And 12 Roof Pitch

Mineral surfaced roll roofing should be installed on roof slopes 1 12 or greater 2015 irc r905 4 2.

2 and 12 roof pitch.

There is no standard universal roof pitch roof pitch varies depending on culture climate style and available materials in the usa the range of standard pitches is anywhere between 4 12 and 9 12 in the uk the typical house has a pitch between 40 50 although 45 should be avoided. Contemporary houses often have flat roofs which shouldn. Roof pitch degree table. The table below shows common roof pitches and the equivalent grade degrees and radians for each.

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. What is the standard pitch for a roof. Asphalt shingles continue to be the most widely installed roof covering option in north america.

5 12 roof pitch 22 angle 22 62 degrees details. Roof pitch defined and explained. On blue prints architects engineers usually display the pitch of a roof in the format shown on the image where number 4 represents a rise and number 12 represents a length. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.

If this isn t practical then perform the same measurement on the underside of the roof. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. Pitch is the term used to describe the angle slope or slant of your roof.

6 12 roof pitch 26 angle 26 57 degrees details. 4 12 roof pitch 18 angle 18 43 degrees details. Most roof s have a pitch in the 4 12 to 9 12 range. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.

8 12 roof pitch 33 angle 33 69 degrees details. 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. This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees. Metal roof shingles should be installed on roof slopes 3 12 or greater 2015 irc r905 4 2.

Clay and concrete roof tiles should be installed on roof slopes 2 5 12 or greater 2015 irc r905 3 2. 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.