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 shed roof.
Or the colon can replace the slash as in 2 12 or 7 12.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
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.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance.
In roofing it is expressed in inches of vertical rise over inches of horizontal run.
The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.
Remember this advice applies only to shed roofs that have a pitch greater than 3 12.
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.
Pitch is the term used to describe the angle slope or slant of your roof.
If you have a roof with a pitch that is less than 3 12 you should not use 2x4s.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
Roof pitch defined and explained.
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.
Simply put it s a shallow roof.
Constructing a new shed roof at the desired pitch is as easy as knowing how to use a speed square.
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.
A 4 12 pitch being 4 inches of vertical rise over one foot or 12 inches of horizontal run.
To make the bottom cut i laid out a level cut for a 4 in 12 pitch.
Therefore if your roof rises 4 inches over the course of 12 inches of horizontal run then your roof pitch is 4 12.
Roof pitch designations are comprised of two numbers indicating a ratio.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
Asphalt shingles typically have a minimum slope rating of 4 in 12.
Remember that pitch is calculated as the height or rise of a roof pitch over 12 inches of horizontal run.
This means that for every 12 inches of horizontal distance across the shed the roof will rise 4 inches.
Most roof s have a pitch in the 4 12 to 9 12 range.
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.