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Posted by David on January 5th, 2003 09:19 PM
In reply to certainteed roof installed properly?? by Cliff on January 5th, 2003 08:29 PM [Go to top of thread]

Cliff, if these are 3-tab composition shingles, this wouldn't be surprising to see when first installed. Often the bottom edge of some of the shingles will appear to be raised for a while, until they get some heat on them which will let them relax and activate the tar stripe on the underside so it can adhere to the shingle below.

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