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Hello, I just had a contractor close in my 17 x 10 ft screened in porch with metal roof. On a couple days this winter before addition, I noticed condensation on the bottom of the tin/metal roof. Before we did anything with the addition, I asked the contractor if that would be an issue. His answer was basically, no, not once we got it insulated and closed in. This room is now finished with insulation, drywall, windows, flooring...everything. But I have this nagging desire to know for sure that this roof won't condensate through the fiberglass insulation then mold the sheetrock. The insulation was the pink panther kind with paper on the bottom side. There aren't any gaps in the insulation to let air through. Any thoughts on whether this will be an issue. If not, that's great. If so, what are the options now. Is this the contractor's fault if it ends up causing a problem. Thanks for any help you can give.
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Condensation is caused when warm, moist air comes into contact with a cold surface. This causes the air to give up some of its moisture, since warm air can hold more moisture than cold air. If the moist air cannot come into contact with a surface cold enough to make it release mositure i.e. the dew point, then you should have no problems.
12/15/2009
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12/16/2009
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