Minimum Slope For Shed Roof

Express the slope of a metal roof by a ratio which indicates the pitch of the roof.

Minimum slope for shed roof.

You need to consider the slope requirements of each panel to determine this minimum slope. The shed roof pitch has two slopes and the window above eaves level allows additional light into the shed. I always recommend at least a minimum pitch of 1 in 40. To shed the snow.

Asphalt shingles typically have a minimum slope rating of 4 in 12. 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. Much depends on what your intended use for the shed actually is. This means that for every 12 inches of horizontal distance across the shed the roof will rise 4 inches.

The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. Remember metal roofing is more expensive than shingles. An important factor to throw into a discussion about roof pitches is local planning rules and regulations. 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.

The roof joists can be fixed spanning directly between wall plates. 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.