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We are getting quotes for a new metal roof. Do you recommend tearing off the old asphalt shingle roof?	Brent Kuykendall 5/21/2012	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/17432/find/
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.	Todd Miller Isaiah Industries, Inc. 5/21/2012	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/17433/find/
+1 Most manufacturers do allow for it. All will require some sort of slip layer or underlayment.	Eric Novotny An informed customer is the Best Customer! 5/22/2012	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/17434/find/

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