Originally Posted by simiHal
Youíre likely seeing the aluminum stud absorbing warmth from inside and creating condensation frost from the cold on the outside.
Condensation occurs on surfaces that are at or below the condensation temperature. Anyone familiar with the terms DRY BULB/WET BULB and RH (RELATIVE HUMIDITY) and DEW POINT?
Where the condensation occurred, the surface temperature was at or below DEW POINT
. Where the condensation did not form, the surface temperature (DRY BULB)
was above DEW POINT.
Richard in Milwaukee (retired HVAC service tech and steamfitter.)