Brent Kuykendall
We are getting quotes for a new metal roof. Do you recommend tearing off the old asphalt shingle roof?
Todd Miller
Classic Products, Inc.
Brent, it depends a lot upon your exact situation. As long as it is not a code violation and as long as there are no existing signs of a weight issue or rotten lumber / leaks on the roof, I feel that a lay-over can be safely done with many types of metal roofing. I always call for a layer of underlayment over the old shingles.
An informed customer is our best customer.
+1 Most manufacturers do allow for it. All will require some sort of slip layer or underlayment.

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