2 12 Roof Pitch Shed Roof

Asphalt shingles typically have a minimum slope rating of 4 in 12.

2 12 roof pitch shed roof.

The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. A 4 12 pitch being 4 inches of vertical rise over one foot or 12 inches of horizontal run. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Remember this advice applies only to shed roofs that have a pitch greater than 3 12.

Constructing a new shed roof at the desired pitch is as easy as knowing how to use a speed square. Pitch is the term used to describe the angle slope or slant of your roof. Asphalt shingles continue to be the most widely installed roof covering option in north america. Therefore if your roof rises 4 inches over the course of 12 inches of horizontal run then your roof pitch is 4 12.

Most roof s have a pitch in the 4 12 to 9 12 range. This means that for every 12 inches of horizontal distance across the shed the roof will rise 4 inches. 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. As stated in the.

They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. Simply put it s a shallow roof.

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. To make the bottom cut i laid out a level cut for a 4 in 12 pitch. 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. In roofing it is expressed in inches of vertical rise over inches of horizontal run.

The table below shows common roof pitches and the equivalent grade degrees and radians for each. Or the colon can replace the slash as in 2 12 or 7 12. Roof pitch designations are comprised of two numbers indicating a ratio. 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.

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. Remember that pitch is calculated as the height or rise of a roof pitch over 12 inches of horizontal run. 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.