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I have a metal roof with exposed screws on my house, probably screwed into plywood from what I can see. The metal roof itself is only about 5 years old. The problem is the row of screws along the lower edges of the roof. I've seen this before in other houses in the area; we get pretty extreme temperature swings. Plus, my metal panels are long, almost 20 ft from ridge to eave, so they must put a tremendous strain on the lower edge of screws as they expand and contract.
These screws are not only loose, but they've almost all stripped the wood and stick up random amounts a few weeks after I've pushed them down. I'm worried about the wind lifting the panels right off. They're a size 14, so I can't put a bigger screw in. Is there a caulk or glue I can squirt into the screw holes that would grip these screws? Any other ideas? Any help will be greatly appreciated!
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You can get a #17. Also, you may be able to use a longer screw if the existing screws do not penetrate the plywood fully. As for a caulk, urethane may work but I would be skeptical of holding a panel down at the eave with just caulk. Possibly you could at least seal these existing fasteners with urethane and add additional fasteners at new locations along the eave.
7/30/2009
Or copy this URL: https://www.metalroofing.com/spirit/comment/13642/find/NCI Building Systems, Inc.
7/31/2009
Or copy this URL: https://www.metalroofing.com/spirit/comment/13643/find/