Hi all. I’ve built on a new 7’x12″ laundry room and am “weaving” the new shingles into the old. Paper is down and I’ve carefully pulled a diagonal section of old shingles so that the new ones can weave in underneath the old and provide good coverage. Here’s my question – in pulling old shingles loose I naturally had to break the self-sealing bond. I am skeptical that they will re-seal on their own – what’s the proper product to lay down to reseal these tabs? Any other sage words? Thanks.
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OK, no, it's not the world's narrowest laundry room - it's 7'x12'!
You can use a number of sealants from a caulking tube. We use Geocell 2300 elastomeric caulking, but ordinary Black Jack (roof cement)will work fine.
After you're done, just go back and put a couple of generous dabs under each tab, being careful that when you push the tab down the sealant doesn't squeeze out and mess up the shingle below.
John Svenson, builder, remodeler, NE Ohio