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asphalt composition comparison

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Guest User
10/14/2004
Are presidential tl and GAF grand canyon considered to be equivalent? Are they both truly "tri laminated"? Is on a better product than the other? If the "metal roofing alliance is the wrong place to ask this question please stear me to the right place. Thanks
Guest User
10/15/2004
Yep, as you suspected, we can't help with these. I suggest posing this question directly to the manufacturers of these products. (Okay, really, I suggest giving up on this question and buying a metal roof!)
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