rubber OVER shingles?

Old 08-24-08, 07:09 PM
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Location: Wisconsin
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rubber OVER shingles?

Can a rubber roof be installed over existing shingles if a 3/4" foam underlayment is installed first? I have heard of this technique being used over a tar and stone flat roof.
Old 08-29-08, 10:19 AM
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You can lay over the shingles if a insulation board is fastened down first but I would recommend removing the shingles first.
It makes for a smoother roof.

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