This means that for every 12 inches of horizontal distance across the shed the roof will rise 4 inches.
Good roof pitch for shed.
Having a steeper pitched roof allows for more space in a shed loft.
Asphalt shingles typically have a minimum slope rating of 4 in 12.
Basically the steeper the pitch the better it can shed snow and rain.
Worth noting is that the higher the first number in the equation is the steeper the pitch of your shed roof will be.
A roof pitch calculator can make things much easier.
Knowing how to calculate roof pitch rise run and ridge board height is essential to any shed construction.
Shed roof pitch calculator.
How to measure determine shed roof pitch in the simplest possible terms shed roof pitch is defined as the amount of rise per foot of run.
If you have to go with a roof pitch less than 3 12 then it would either have to be a metal roof or a roof covered with a rubber membrane to prevent water penetration.
This image shows a relatively shallow roof pitch of 15 degrees.
It is expressed as x y where x rise and y run for example 4 12 or 5 12 and so on.
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 heavy snow rain or wind.
Roof pitch for the shed roof pictured above the back has a 5 12 pitch.