Metal Roofing over A Membrane ...: "I have a project where the roof slope is 1/4" ..." - Scott Turnquist (9/10/2008) | Roof Pitch | Archive

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I have a project where the roof slope is 1/4" / 12". Most manufacturers recommend 1/2" / 12" as a minimum as does the NRCA Roofing and Waterproofing Manual (5th ed). I've noticed in previous postings you say that some products can work down to a 1/4" / 12" slope is there any special treatments that you would need to provide for such a flat pitch? Specifically, I was wondering if providing a membrane system under the metal roof would be an appropriate solution?		Scott Turnquist 9/10/2008	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/12024/find/
This would need to be a mechanically seamed standing seam approved for such low pitch and installed per manufacturer instructions.		Todd Miller Isaiah Industries, Inc. 10/1/2008	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/12025/find/

Metal Roofing over A Membrane Roof