Worth noting is that the higher the first number in the equation is the steeper the pitch of your shed roof will be.
Googd roof pitch for shed.
This image shows a relatively shallow roof pitch of 15 degrees.
Asphalt shingles typically have a minimum slope rating of 4 in 12.
It is determined by finding the rise amount in each foot run.
Having a steeper pitched roof allows for more space in a shed loft.
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.
Basically the steeper the pitch the better it can shed snow and rain.
Therefore if your roof rises 4 inches over the course of 12 inches of horizontal run then your roof pitch is 4 12.
It is expressed as x y where x rise and y run for example 4 12 or 5 12 and so on.
Looking at a construction plan it is represented by a triangle shaped drawing which is written in inches.
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.
The loft space would be much larger with a roof pitch of 45 degrees.
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.
As stated in the video speed squares have useful markings on them from 0 to 12.