I have had a metal roof on my cabin for 9 years. The roof is not a standing seam. The screws that hold it in place are exposed to the weather. Every spring, after the snow is gone, I find the last row of screws closest to the eave, backed out or missing. I have tried to silicon them in place with no luck. Has anyone else experienced this problem and found a solution.
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Replies
I would guess you have a pretty good-sized ice dam built up on that eave by spring, and it's the ice when it finally lets go and slides off that's damn near ripping the screws out of the roof deck.
Install an ice fence on the slope of the roof where this is a problem; frequently this is the south facing side, as a lot of direct sunlight can cause this sort of ice buildup even in the absence of escaping interior heat. The ice fence prevents the dam from sliding off the roof until it melts down small enough that it won't do any damage.
Dinosaur
'Y-a-tu de la justice dans ce maudit monde?
You might try Lexal instead of silicon. It works alot better on metal roofing.
Dave
Thanks for the suggestion Dave. What is lexal?
think it might be LEXEL, not sure though, good stuff, a roofing or siding place should carry it.
EricEvery once in a while, something goes right!
what part of ak are you at dave?
Oldschool,
How solid is the rood deck or purlin system at the eave?
I have used pan head screws with neopreen washers ond or butal caulking to seal them down in situations where low profile was important(valleys and eaves with ice problems)
Snow Jax are also a good product to use, they screw to the roof and hold snow/ice in place while it melts.
Good luck,
Garett
All systems are good. The roof deck is OSB and I thought that might be the problem. However when I screw the fasteners back in they hold very well. I think the physics of the metal roof expanding and contracting has something to do with the screws backing out. The pitch is 12/12. I don't understand why the snow/ice only affects the eave screws. I will experiment with all of the suggestions that have been posted.
having a 12 12 pitch makes dinosaurs post even more acceptable