Therefore if your roof rises 4 inches over the course of 12 inches of horizontal run then your roof pitch is 4 12.
2 12 shed roof pitch.
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Remember that pitch is calculated as the height or rise of a roof pitch over 12 inches of horizontal run.
If your roof pitch is greater than 3 your roof is considered pitched.
The minimum roof pitch for shedding snow is around 30 or a 6 12 or 7 12 slope although this is not a definite as the material of your roof the direction of the snow and wind are some factors that can affect whether or not snow will slide as roofs of as little as 10 have been reported to shed snow.
As stated in the.
Simply put it s a shallow 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.
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.
Much depends on what your intended use for the shed actually is.
If you are only trying to keep a wood pile dry or storing a few outdoor tools and light machinery out of the weather then you might consider a simple single pitch roof since most everything inside will be stored at ground level and pulled out from the outside of the shed.
Whichever roof pitch you choose make sure that you select a roof covering that is designed to be waterproof at the angle that you eventually select.
Constructing a new shed roof at the desired pitch is as easy as knowing how to use a speed square.
Read more about roof pitch at wikipedia.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.