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Posted by Goedjn on October 26, 2005, 5:38 pm
On 26 Oct 2005 12:21:14 -0700, spamTHISbrp@yahoo.com wrote:
>I have an odd repair I need to make, and wish to put some membrane
>in-between the lower- and upper-sheets of metal roofing at a lap joint.
>Ideally I'd get some more of the same type metal roofing, cut it into
>3' sections, and slide it up under the upper piece, and over the lower
>piece. I'm deeming this too expensive and labor intensive (a lot of
>cutting), and don't like my chances of finding exactly the same
>brand/type/shape of metal roof panel.
>The dorks that built the roof on my garage didn't lap the panels very
>much (I think) and didn't use butyl tape on the lap joint, so all
>across the roof there is a 65' long leaky joint. In some places the
>plywood sheathing is rotted a bit and won't hold a screw, so I can't
>just pull the screws, add the tape, and install new screws.
>I'm not going to strip the roof to replace a tiny amount of rot, and
>need a way to essentially seal the joint, and to seal all the screw
>holes all the way across. I'd just leave the screws that won't hold out
>(and fill the holes with roofing spooge, and put screws nearby where
>they would hold) if I thought I could really plug the holes, but I
>think that would leak given the shearing motion of the panels as they
>expand/contract.
>I'm also tempted to just run the butyl tape above the screw holes, and
>at the screw holes, and run new screws above and below the holes that
>won't hold a screw. Just leave the holes that won't hold a screw empty,
>and let the tape fill 'em.
Climb up there with a welding rig.
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> I would also prefer to seal the leaks, and let the rotted portions
> remain completely exposed.
> I think I can raise the upper panel enough to slide in tape, or felt,
> or membrane.
> Its going to be 50 and sunny for probably the last weekend here in
> central NY, so whatever I'm going to do, its timne to do it.
> See my roofing thread for another idea I had (I shamelessly bumped it)
> -Dave