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Im planning on installing a Metal roof on an A frame cabin. Currently the roof is cedar shake. Would I need to rip off the cedar shake and then install the metal roof or can I keep the cedar and install on top. If I rip out the cedar I would probably need some type of insulation because inside the house is just cedar no insulation.
5/3/2022
Or copy this URL: https://www.metalroofing.com/spirit/comment/25894/find/I'd suggest talking to your roofing manufacturer. Some metal shakes could potentially be installed over what you have along with a layer of underlayment. Other products would require vertical battens followed by horizontal battens to help create a smooth surface. That said, the best thing to do may be to remove the roof shakes, install insulation and solid decking and then the new metal roof.
Isaiah Industries, Inc.
5/3/2022
Or copy this URL: https://www.metalroofing.com/spirit/comment/25895/find/Thanks Todd. I think the plan will be to remove the existing roof shakes, install decking, 2 inch rigid foam insulation another layer of decking, vapor barrier and then metal roof. What do you think?
5/4/2022
Or copy this URL: https://www.metalroofing.com/spirit/comment/25898/find/That sounds good. You could consider a breathable underlayment since there will not be any ventilation. The insulation will be very helpful to prevent condensation but a breathable underlayment would be good as well.
Isaiah Industries, Inc.
5/5/2022
Or copy this URL: https://www.metalroofing.com/spirit/comment/25899/find/