Slope Of A 2 12 Roof

Simply locate a roof rafter board place the end of the level against the bottom edge and measure from the 12 inch mark vertically to the bottom edge of the rafter.

Slope of a 2 12 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. Clay and concrete roof tiles can only be installed on roof slopes of 2 1 2 12 or greater. Then you ll be able to measure slope from an unfinished attic space under the roof. Other than the 45 roof slope which is 12 in 12 none of the standard roof pitches 5 in 12 6 in 12 etc are equal to a whole degree.

They have a pitch ranging from 4 12 to 9 12. This means for every 12 horizontal units the roof must rise a minimum of two and one half vertical units. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Most roof s have a pitch in the 4 12 to 9 12 range.

These roofs have a pitch less than 4 12. Learn more about finding the angle of a line using our slope calculator. The best roofs for a 2 12 pitch roof pitch basics. 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.

Conventional roofs are the easiest to construct and you can walk on them safely. You can also calculate roof pitch even without using a roof slope calculator. A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely. Asphalt shingles continue to be the most widely installed roof covering option in north america.

Minimum roof slope roof pitch r905 3 2. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Common roof pitches and equivalent grade degree and radian angles.

Using a tape measure make a pencil mark 12 inches from the end of a carpenter s level. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal.