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TOPIC: I Have An Existing Metal Roof and Have A Question

Penetrations on SS roof

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I have several square goose-neck style roofing vents installed for stacks and exhaust. These square vents were installed directly on top of the standing seam panel and sealed around the perimeter edges. So no portion of the roof panel overlaps the vent. Is surface mounting an acceptable installation method or should the standing seam panel have overlapped the top portion of the vent assembly? (as you typically see with asphalt shingle roofs)?
Guest User

6/26/2014
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If the penetration is blocking the flow of water between the seams then you will have problems. There are a couple of ways of dealing with this. I have attached our way of dealing with a square penetration. http://www.atas.com/ATAS/media/ATAS/pdf/InstallationGuides/SquarePenetrations.pdf American Building Components also has a good way handling it, but I could not find the link. Let us know if we can help any further. Dick Bus
Dick Bus

6/27/2014
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Or copy this URL: https://www.metalroofing.com/spirit/comment/19619/find/

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