I noticed a damp spot where floor meets wall. Moisture meter shows moisture. The
meter has a maximum level of 50% and it was showing just that. Approximately 1.5
feet higher the level drops to 11%. The floor is a hardwood floor which does not
show moisture (according to the meter). Where the wood meets the wall there is
The house has two floors (built in the sixties). Concrete floors and walls. Upper
floor is OK but ground floor has the problem. The moisture seems to seep from
small holes in the concrete floor. Below ground floor there is an empty space
about ten feet high. The crawling space (if you can call it that) below the
problematic ground floor is dripping with of moisture on the ceiling.
Only a few walls have moisture and only around near the holes.
The floor has water pipes embedded in the concrete. I don't think there is a leak
but instead I think the moist from ground is seeping up. The areas have had
problems with ants. Perhaps the ant dug up a hole? The house has an HVAC system
taht really pulls air in from every hole. Could that bring moisture up since the
crawling space celing is moist.
What can I do about the problem? I've allready filled the holes with
waterproofing material. A renovation guy came up and told me to rip the moist
concrete and wait a couple of weeks if it dries up.