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Problem with moisture in Georgia

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DavidApp

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One of the problems we have in Georgia is the changes in temperature and humidity in Spring and Fall. It gets cold then warms up with an increase in humidity and you get this. Our breezeway and the water is condensation. It forms on any cold objects like my TR3 even though it is in the garage on all exposed surfaces also on tools etc. Have to put a heater in the garage?

David

Change of temp.jpg
 
Hi David. Same thing happens here in Connecticut in spring. Outdoor things are *cold*, but warmer humid air moving in sets up the condensation.

Only thing you can do is prevent the warm humid air from entering the area, closing it off with walls - altho' setting up some big fans can help a bit.

I had the same problem with the shed I kept my TR3 in. Replaced the shed with a real garage, and the problem disappeared.

Tom M.
 
Store car on old plywood, it will absorb the water rather than getting on car. Cardboard is fine as well. Stand it up outside in sun once in a while to dry out.
 
Hard to tell from the pic but could that be moisture from the concrete floor that is condensing do to temp changes?
 
David -

Whatever you do, you need some serious ventilation through that area. Tom alluded to that above. Getting that stagnant air out of there will do wonders.

Mickey
 
Elliot, my slab water spots all over the place.
Water table about at 1-2 foot below grade.
Know for a fact they didn't plan on that when the slab was poured.
I can tell that by all the other shoddy building practices
 
DNK said:
Elliot, my slab water spots all over the place.
Water table about at 1-2 foot below grade.
Know for a fact they didn't plan on that when the slab was poured.
I can tell that by all the other shoddy building practices
Click to expand...
So I'm assuming you don't have a basement.
 
It's the cool slab condensing the moisture in the air... just like the outside of your ice tee glass on a humid day.
 
In my "other life" I was a sales engineer (fancy title!) at a commercial/industrial heating and ventilation manufacturers' rep agency. This was in Louisiana, a state with significant humidity levels, and several of my clients were poultry processing plants. They use a LOT of steam, and have tremendous issues with humidity control. One of the first rules we were taught was the need to move and exchange air to control humidity.

Excerpt from link below:

Before you decide on a moisture control strategy, it helps to understand that moisture or water vapor moves in and out of a home in three ways:


  • With air currents
  • By diffusion through materials
  • By heat transfer.
Of these three, air movement accounts for more than 98% of all water vapor movement in building cavities. Air naturally moves from high-pressure areas to lower pressure areas by the easiest path available -- generally through any available hole or crack in the building envelope. Moisture transfer by air currents happens quickly, and carefully and permanently air sealing any unintended paths for air movement in and out of the house is a very effective moisture control strategy.


https://www.energy.gov/energysaver/weatherize/moisture-control
 
The area in the photo is the breezeway open on both sides so the air moves through freely. The window in the garage door was covered in moisture as were both cars in the closed garage.
The grade level is actually built up from nothing at the camera location to about 5 or 6' at the end of the breezeway.

David
 
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