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luberhill
Explorer
Oct 01, 2018

Condensation on upper inside walls ral cold morn

So last night we had a cold rainy night, got down to 40 and I kept the inside around 65 but then turned it to 70 when we woke
I notice if you put you fingers on what the call “ wallboard” up close to the ceiling it feels cold and damp .
Assume it’s because the outside walls are so cold and it’s hot inside ??

54 Replies

  • Opening a window at 40’degs outside ?
    Ceiling fan on all the time also would take all the heat out..
    Guess that doesn’t make sense to me..
    Would I be better off going back to letting the ac fan come on when the furnace comes on
  • Always and I mean always run a vent ceiling fan and keep a window open. Damp wallboard means damp under the wallboard where you cannot see it too.