Let us recap on the minimum roof pitch required for each type of roofing material.
Minimum workshop roof slope.
However you can only use this pitch with built up roofing or specialized synthetic roofing.
To put it in perspective the angle of this slope would be around 30 degrees.
To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page.
Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run.
Asphalt shingles require a minimum roof pitch of 2 12 or greater.
The profile is the shape taken by the sheets when you bend them to form panels.
Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater.
A ratio is the most common way of expressing roof pitch or roof slope but degrees are also possible.
Roof pitch is the measurement of roof steepness.
So if your roof rises 4 inches for every 12 inches of horizontal length then the pitch of your roof is expressed as 4 12.
Express the slope of a metal roof by a ratio which indicates the pitch of the roof.
The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code.
The minimum roof slope for metal roofs is dependent upon the roof profile.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
An example for a steep sloped roof is 8 12.
Minimum pitch for metal roof.
You need to consider the slope requirements of each panel to determine this minimum slope.
The values given here.
The minimum slope of a roof depends on the roof s profile.
With regards to metal roofing the profile refers to the shape adopted by the metal sheets when they are bent to form the panels.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
Metal roof shingles require a minimum roof pitch of 3 12 or greater.
The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run.
To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope.
The minimum roof pitch for shedding snow is around 30 or a 6 12 or 7 12 slope although this is not a definite as the material of your roof the direction of the snow and wind are some factors that can affect whether or not snow will slide as roofs of as little as 10 have been reported to shed snow.
The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems.
