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I am buying an old (1780) house, "updated" some time in the 1950's. The roof is standing seam metal in good shape, but laid directly on top of the attic's rafters. There is no insulation. I would like to add insulation ... but also to allow for appropriate ventilation. Any suggestions most gratefully received.
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I have 1 1/2 house with a metal roof; the portion of roof over half the house has a 12/2 pitch and is screwed to 1 1/2 strips...no barriers, insulation. There is a HVAC unit in the attic and it is insulated. There are appropriate ridge vents and soffits. However, in the wintertime, there is still condensation on the underside of the roof. There is no building code where we live; and we have called the manufacturer of the metal roof, and they don't have a solution. Short of installing a new roof, is there a solution to this problem?
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Martha, the hard reality is that chances are your roof was improperly installed.
2:12 is a very low pitch roof and only certain metal roofs are appropriate for that pitch.
Most of the metal roofs appropriate for that pitch would require solid decking and underlayment for a residential application.
You can try some things like increasing insulation in the attic, making sure that you do not have sources of excessive moisture inside the home, etc.
However, again, I am very sorry to say that it sounds to me like your roof was not installed properly and there will be no way to fix it shy of removing it and then doing things the right way.
9/9/2004
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Or copy this URL: https://www.metalroofing.com/spirit/comment/3972/find/12/3/2004
Or copy this URL: https://www.metalroofing.com/spirit/comment/3973/find/