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Posted By: cookieSorry Mike, I'd have to disagree, condensation will alway form on the cold side of an insulated room where moisture can pass through the structure,
Posted By: chuckeyAs this air migrates through the plasterboard (still with its water vapour content), it then migrates through the insulation and gets colder, as it's colder, some of the water vapour will actually condense into water droplets. On the outside of the insulation it's at its final lowest temperature, which is the outside temperature.
Posted By: CWattersIf the loft is well ventilated the water vapour shouldn't condense out into droplets
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