Installing metal roofing over old ...: "Is it alright to install metal roofing over old wood ..." - Guest User (9/28/2004) | Roofing over existing roof | Archive

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Is it alright to install metal roofing over old wood shingles with no felt? Are the old wood shingles a fire hazard under the metal roofing?	Guest User 9/28/2004	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/4141/find/
I have never seen any indication thise poses a fire hazard and I have seen hundreds of installations this way with the exception that I do suggest using a quality underlayment over the shakes. Adhere to manufacturer's instructions at all times.	Todd Miller Isaiah Industries, Inc. 9/28/2004	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/4142/find/
What kind of material do you recommend for a quality underlayment over wood shakes?	Guest User 9/29/2004	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/4143/find/
First of all, it is important to get the recommendation from the manufacturer of the roofing you're installing. For many years, 30-pound felt was the "norm" for such applications. You had to really watch out for tears though and repair those when they occurred. In recent years, more and more folks are using the new sythetic underlayments which are far more tear-resistant. These include products such as Tri-Flex, SharkSkin, RoofTopGuard and Titanium.	Guest User 9/29/2004	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/4144/find/

Installing metal roofing over old wood shingles