Condensation in Ceiling

mike0856December 23, 2010

I redid the insulation on my second floor of my Cape Cod, I used a product called Durovent on the roof sheathing and insulated the ceiling and drywalled it. The insulation had a vapor barrier on it. There appears to be ample airflow in the area behind the kneewall which was also insulated and the attic. When I feel the insulation where it touches the durovent, it is showing signs of moisture, Can anyone explain this. Seams of insulation were all taped with a foil tape as were all penetrations. No voids in insulation that I know of.

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"Can anyone explain this. "

Most air is reaching an area below its dew point.

    Bookmark   December 25, 2010 at 8:46PM
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