Minimum Roof Pitch For Metal In Florida

The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.

Minimum roof pitch for metal in florida.

Built up roofs require a minimum roof pitch of 1 4 12 or greater. After that the miimum pitch for metal panels depending on the methods used to join the panels. Amongst many decisions one has to make when designing a metal building determining metal roof minimum slope is one of them. Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater.

But the manufacturers installation instructions and minimum slope always trump the code. Here s the citation from the 2017 residential edition of the florida building code for minimum slope of metal roof panels and the internation residential code irc is similar. Wood shingles require a minimum roof pitch of 3 12 or greater. That s a 7 12 pitch the roof gets 7 inches higher for every 12 inches of run toward the peak.

Roof slope is critical in determining that choice. Let s take a look at some of the main things to consider when choosing a metal roof panel with regard to roof slope including building codes minimum slope requirements and typical applications. Building codes are perhaps the most important driving force dictating the roof. The minimum pitch for metal roof shingles and lapped non soldered panels is 3 12.

Wood shakes require a minimum roof pitch of 3 12 or greater. The minimum pitch for roll roofing is 2 12 or 2 inches rise to 12 inches run. Sunday september 9 2018. Asphalt shingles continue to be the most widely installed roof covering option in north america.

Panels joined with an applied lap sealant can go as low as 12. The minimum pitch for a standing seam metal roof is 1 4 or 3 inches rise to 12 inches run. For low slope metal roofs under 12 that are nearly flat modified bitumen roofing thermoset and. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.

The required roof slope varies with application of materials and use. Minimum roof pitch for metal building. It determines how many inches the roof should rise for every 12 inches expanding on the horizontal side. The minimum roof slope requirement for metal panels varies depending on panel connection conditions.

We are in florida and provide plenty of information about hurricanes. Roof pitch is the degree of building s roof slope. What is the minimum pitch slope for a metal roof. Civil and structural engineer rima taher phd recommends a 30 degree slope as the right pitch to aerodynamically handle high wind.

Slate and slate type shingles require a minimum roof pitch of 4 12 or greater. See the below florida building code fifth edition 2014 2017 sections below to determine which slope is appropriate based on your specific design scenario.