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I have recently been told that when installing 3 tab shingles such as Bird/Certain teed or GA I must remove the 1″ clear plastic strip on the underside or the company will not warranty the products. Has anyone heard of this?
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I have recently been told that when installing 3 tab shingles such as Bird/Certain teed or GA I must remove the 1" clear plastic strip on the underside or the company will not warranty the products. Has anyone heard of this?