The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run.
Minimum slope for shed roof.
An important factor to throw into a discussion about roof pitches is local planning rules and regulations.
I always recommend at least a minimum pitch of 1 in 40.
To shed the snow.
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.
Furthermore a roof in a forest should have a slope of at least 2 12 to shed.
A quarter inch slope is the lowest you would go with a metal roof experts recommend at least a half inch minimum to ensure a weatherproof interior for your shed.
The roof joists can be fixed spanning directly between wall plates.
This means that for every 12 inches of horizontal distance across the shed the roof will rise 4 inches.
Much depends on what your intended use for the shed actually is.
The shed roof pitch has two slopes and the window above eaves level allows additional light into the shed.
The profile is the shape taken by the sheets when you bend them to form panels.
Asphalt shingles typically have a minimum slope rating of 4 in 12.
Remember metal roofing is more expensive than shingles.
You need to consider the slope requirements of each panel to determine this minimum slope.