Minimum Slope For Metal Roof With Snow

Low slope metal roofs require less material which reduces the overall load on the building s structure.

Minimum slope for metal roof with snow.

Typically large footprint single story. In country with heavy snow and tough winter days the metal roof minimum slope is recommended to be 1 12. The minimum pitch for metal roof shingles and lapped non soldered panels is 3 12. A minimum pitch of 3 in 12 or even 4 in 12 will normally be required.

Minimum pitch for metal roof. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. Asphalt is the most versatile and works well in any roof pitch climate. The 1 4 inch per foot slope was not adequate.

With regards to metal roofing the profile refers to the shape adopted by the metal sheets when they are bent to form the panels. 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. 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. To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope.

The most common roofing material is asphalt shingles. Pitched roofs begin with with slopes greater than 3 in 12. Metal is rising in popularity as recycled options have improved in quality and can be cheaper than purchasing tiles. Suitable materials for pitched roofs.

Keep in mind that neither metal shingles not corrugated metal panels are suitable options for low slope or nearly flat roofs. The minimum roof slope for metal roofs is dependent upon the roof profile. The standing seam metal roof on this ice hockey rink leaked like a sieve a few weeks after the first snow arrived. A minimum slope of 1 inch per foot is recommended in snow country.

The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. Minimum metal roof slope depends on the roof profile building design climate and site location. However if your area is prone to hail avoid installing a metal roof as denting will occur.