| roof vents [message #75021] |
Fri, 26 February 2010 15:15  |
jayrabe
Messages: 509
Registered: June 2009
Location: Portland, OR
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Senior Member |
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Well, I got my new roof vents installed, but I'm not comfortable with the result. I'm really not sure what I'm doing here, so I hope everyone can have patience with what are probably pitiful newbie attempts to do this job.
Here's the stuff I sealed it with. It's "butyl," and I believe it does not harden. It's what the kit had at my local RV supply store.
http://www.gmcmhphotos.com/photos/showphoto.php?photo=32538&title=p2260029&cat=5390
I used SS screws and washers, and just put a layer of the stuff (is this what I've heard called "dum dum" tape?) under the seal edge, then tightened until it started to squeeze out, then pressed it back in to make a more rounded edge.
http://www.gmcmhphotos.com/photos/showphoto.php?photo=32537&title=p2220031&cat=5390
These vents have been repositioned at least twice, so there were extra holes underneath. I replaced 3 vents altogether, and on the last one I filled the un-used holes with silicone sealant. Was that a good thing to do or unnecessary? I read somewhere on the net someone saying to never use silicone, but I don't remember the context or reason.
Thanks for your help
J "struggling with incompetence" Rabe
76 Palm Beach
Portland, OR
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