Ask Todd Miller *Metal Roofing Expert

Install Metal Over Old Shingles

Written by Todd Miller on September 24, 2009 | Filed under: Misc,Roofing Answers

Homeowner question:
I was given a quote to install a metal roof over the existing shingles. The shingles are very curled on parts of the roof. Is this an issue? The installer stated the curls would break off when they are walking on it during the installation.

My response:
I suggest two things.

1) Always a layer of underlayment over the old shingles.
2) Send a picture of the current roof to the manufacturer of the metal roofing and get their input.

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About Todd

Todd's expertise comes from his years of experience in metal roofing manufacturing. As president of Isaiah Industries, based in Piqua Ohio, Todd runs a several of the world’s leading manufacturers of residential metal roofing; Classic Metal Roofing Systems, Kassel & Irons, and Green American Home. His personal goal is to educate homeowners of the long-life benefits of metal roofing.

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