Guest User
I have been waiting for weeks to get my roof on but it has been raining forever. At most we have got maybe a cpl days of now rain, then rain again.......... My problem is how dry does my existing roof (asphalt shingle) need to be before I can put down the new under layment on top of the old (and wet) shingle roof? I was thinking it might not be a good idea to have all that moisture trapped in under the new underlayment and new metal roof.
Todd Miller
Isaiah Industries, Inc.
Put a quality underlayment over the existing shingles. They will dry out over time and no problems will result.
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