How Much Pitch Does A Metal Roof Need

A pvc roof is a lot more durable and longer lasting that a conventional epdm rubber roofing system.

How much pitch does a metal roof need.

You could also opt for a pvc flat roofing membrane. The table below shows common roof pitches and the equivalent grade degrees and radians for each. Measure the length and width in feet then multiply together to find the square footage. The minimum slope for lapped non soldered seam metal roofs without applied lap sealant shall be three units vertical in 12 units horizontal 25 percent slope.

The minimum slope for lapped non soldered seam metal roofs with applied lap sealant shall be one half unit vertical in 12 units horizontal 4 percent slope. A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof. To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope. Most roof s have a pitch in the 4 12 to 9 12 range.

Next find the square footage of the metal roofing panels you want to use. The minimum pitch for shingles is 1 6 which is equivalent to 4 inches rise to 24 inches run. Use our roof pitch calculator to find the pitch of your roof. So you would need to pick the right option as most regular standing seam metal roofs will require a roof pitch of 2 12 or even 3 12 at a minimum.