2 12 Roof Pitch Shed Roof

A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance.

2 12 roof pitch shed roof.

If you have a roof with a pitch that is less than 3 12 you should not use 2x4s. 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. Asphalt shingles continue to be the most widely installed roof covering option in north america. 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.

Roof pitch defined and explained. This means that for every 12 inches of horizontal distance across the shed the roof will rise 4 inches. Constructing a new shed roof at the desired pitch is as easy as knowing how to use a speed square. Or the colon can replace the slash as in 2 12 or 7 12.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Most roof s have a pitch in the 4 12 to 9 12 range. Simply put it s a shallow roof. 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. This slope works well for sheds that are fairly narrow like 4 to 6 feet but for sheds that are 8 or wider the shed roof becomes unsightly high. The table below shows common roof pitches and the equivalent grade degrees and radians for each.

As stated in the. To let the jacks sit plumb on top of the sleepers we angled the level cuts to the 3 1 2 in 12 pitch of the shed roof setting the circular saw to a 16 degree bevel the degree equivalent of a 3 1 2 in 12 pitch. If you do opt to use 2 4 shed rafters for your roof construction you will always use a 2 6 ridge beam even though the rafters will be 2 4. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.

The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. Remember that pitch is calculated as the height or rise of a roof pitch over 12 inches of horizontal run. Asphalt shingles typically have a minimum slope rating of 4 in 12. To make the bottom cut i laid out a level cut for a 4 in 12 pitch.

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. There are advantages and disadvantages to having a steep pitch versus a shallow or low pitch the most obvious of which is the roof s ability to shed or withstand. Therefore if your roof rises 4 inches over the course of 12 inches of horizontal run then your roof pitch is 4 12.