Determining length of roof panels | Ask The Experts Forum

Guest User 9/11/2008	Is there a formula for figuring how long the separate panels need to be? The supplier will cut them to size. It's for a 1:12 pitch over a 8'-7" span with a 12" overhang.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/12037/find/
Nate Libbey 9/12/2008	Easy Answer: 9'7-1/2" (depending on the type of panel, you may need to add some for overhang) Harder, More technical answer: A 1:12 pitch means that for every 12" across, the roof rises 1". (8'-7" + 1') = 115" across (115" * 1/12) = 9.5833" rise Then by using the Pythagorean Theorem, we can figure the slope (115115=13225) + (9.58339.5833=91.84) = 13316.84 then (square 13316.84) to get 115.4" = 9'-7.5"	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/12038/find/
Todd Miller Isaiah Industries, Inc. 9/15/2008	Thanks Nate	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/12039/find/

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