03:28PM | 08/15/03
Member Since: 08/14/03
2 lifetime posts
Hi all,
I just sold my house and along came the usual inspection. One of the inspection points was the condensation dripping from the AC ducts in the vented crawlspace. I have noticed it in the past and have really never given it much thought, as the humidity levels here in Northern Alabama are always 98-99% throughout the summer.

The prospective buyer was along for the inspection and he seemed to think is an issue. I would like to know if others see this as a problem?


G Masser


06:59PM | 08/16/03
Member Since: 01/28/03
693 lifetime posts
In warm, moist locations, cralwspaces should NOT be vented in summer.

The reason is simple: warmer, moister air will travel into the crawlspace and condense on surfaces that are below the dew point.

Vents to crawlspaces should be closed in summer.

AC ducts need to be insulated.

Simple fix.


05:02AM | 08/17/03
Member Since: 08/14/03
2 lifetime posts
Thanks Homebild,

But all the ducts are insulated, most are the 6" ID flex, but most of the condensation originates from the main trunk that departs from the air handling unit. I have all those fancy “automatic” vents that open when it gets warm outside (bi-metal thermostat).

G Masser

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