KEN LLOYD
8/8/2006
If I install a standing seam metal roof over my existing asphalt shingle roof (will use 30 lb tar paper on top of shingles) Will the strength of my new metal roof be compromised?
Todd Miller
Classic Products, Inc.
8/15/2006
As long as the manufacturer approves its use over existing shingles, you should not be compromising anything.
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