Any roof from 4 12 to 9 12 is considered an ordinary angle for a roof.
Minimum shed roof angle.
Well there are a few more steps to add the roof covering and trim but you can read about them below potential roof framing for a flat roofed shed.
The requirements for an asphalt shingles roof are contained in the international building code.
A pitch of 10 degrees or less is typically regarded as a flat roof.
The minimum requirement is 2 12.
The 2 12 number is rise over run or two units of vertical for every 12 units horizontal.
Fix your roof deck and you are done.
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.
A shingle roof like this north dallas garage in the photo above may have a failure no matter how good a job the installer did.
Again the most important consideration is the weather.
That works out to about nine degrees if that works better for you.
This translates into a fall of just under 2 5 on an 8 foot roof.
The roof comprises a simple beam.
I always recommend at least a minimum pitch of 1 in 40.
The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run.
Use a pitch of more than ten degrees for more efficient rain protection.
These are also the most common pitches for shed roofs.