Keep in mind that neither metal shingles not corrugated metal panels are suitable options for low slope or nearly flat roofs.
Minimum slope for metal roof with snow.
For the most part the minimum pitch for metal roof installations depends on what kind of material you are installing and the method in which the material is being fastened.
However if your area is prone to hail avoid installing a metal roof as denting will occur.
Metal is rising in popularity as recycled options have improved in quality and can be cheaper than purchasing tiles.
The minimum roof slope for metal roofs is dependent upon the roof profile.
Pitched roofs begin with with slopes greater than 3 in 12.
In country with heavy snow and tough winter days the metal roof minimum slope is recommended to be 1 12.
There are some opinions that standing seam metal roof minimum slope is 12 but it increases the possibility of leaking on the few first days of snow arrival.
Low slope metal roofs require less material which reduces the overall load on the building s structure.
A minimum slope of 1 inch per foot is recommended in snow country.
The standing seam metal roof on this ice hockey rink leaked like a sieve a few weeks after the first snow arrived.
Asphalt is the most versatile and works well in any roof pitch climate.
Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12.
Roof slope is critical in determining that choice.
Minimum metal roof slope depends on the roof profile building design climate and site location.
The minimum pitch for metal roof shingles and lapped non soldered panels is 3 12.
The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code.
With regards to metal roofing the profile refers to the shape adopted by the metal sheets when they are bent to form the panels.
Suitable materials for pitched roofs.
Typically large footprint single story.
A minimum pitch of 3 in 12 or even 4 in 12 will normally be required.
The most common roofing material is asphalt shingles.
The 1 4 inch per foot slope was not adequate.
Minimum pitch for metal roof.