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Not an expert...

Posted by Errin on December 19th, 2000 04:17 PM
In reply to moisture in attic by Chris on December 19th, 2000 01:04 PM [Go to top of thread]

But, Are you covering/closing the vents in the winter months? If not frost can form as described (a side effect of good insulation on the floor of the attic and open vents that allows frost to form just as it does outside) When its cold you have frost and when the sun warms up the roof it melts away. Remember heat rises, insulation slows it down, it doesn't stop it. The attic my get cold, but to the freezing point, sounds like the air exchange rate is excessive to me (fancy talk for a open vent). As far as a cure you need to "remove" the source of moisture and dry the attic out. This will require heating the attic. I do not the extent of your problem, but if possible wait till summer to do it. If it must be done now, I would close off the vents and leave the attic door open. Pay for heat now or pay for repairs later???????? Good luck

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