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TOPIC: Leaking

Leak at a valley on a hemmed panel

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I have installed a hemmed panel, meaning the bottom edge is bent 180 degrees and slid over a cleat instead of being screwed down in mastic. I am experiencing leaks in the valleys. I have found holes at the panel ribs but am not sure of a product to use to seal this hole that is the size of a ball on a ball point pen. Any suggestions? I am also concerned that expansion is causing gaps between the panel and the cleat that the panel is hemmed on. Do you know is there a type of tape like sealant other than mastic that could be used to seal the bottom of the panel to the W flashing in the valley?
Guest User

8/11/2005
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There are butyl sealants which adhere to most paint systems well and are durable. Also, there are butyl tape sealants available. Sika Flex makes a lot of them I believe. Are you certain the leak is in the valley and not from somehere else. Feel free to email additional photos to me at [email protected] Todd Miller
Todd Miller
Isaiah Industries, Inc.

8/12/2005
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