Tin Roof Pitch Requirements
To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope.
Tin roof pitch requirements. Minimum pitch metal roof snow. The minimum roof slope for metal roofs is dependent upon the roof profile. Most residential metal roofs require at least a 3 12 roof pitch and have no maximum roof pitch. Minimum pitch for metal roof.
The pitch is measured in inches of vertical rise per foot of horizontal run and the 5v crimp profile shown above requires a minimum slope of three in twelve or 3 12 3 inches vertically per 12 inches horizontally. Asphalt shingles require a minimum roof pitch of 2 12 or greater. Metal roof shingles require a minimum roof pitch of 3 12 or greater. Let us recap on the minimum roof pitch required for each type of roofing material.
That means there is at least 3 of vertical rise to the roof slope for every 12 it goes back horizontally. For low slope metal roofs under 12 that are nearly flat modified bitumen roofing thermoset and. Profile in the context of metal roofing means the shape that the sheet of metal is bent into to form the panels. The minimum pitch for metal roof shingles and lapped non soldered panels is 3 12.
Panels joined with an applied lap sealant can go as low as 12. Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater. With regards to metal roofing the profile refers to the shape adopted by the metal sheets when they are bent to form the panels. This link will take you to section 1507 requirements for roof coverings to jump to the subsection for your type of material click the name of the material in the code index on the left side of the page you may have to click on the.
After that the miimum pitch for metal panels depending on the methods used to join the panels. Metal roofing system when properly designed and installed is famous for its strong performance against harsh climate environments. That is a 14 degree angle. For each type of roofing material you can see the actual language used in the model 2018 international building code at the international code council website.