water on floor

[kywildcat]

It got warmer here in KY than it has been all year, and when I opened up my garage doors this afternoon, the florr was dry. After about 15 minutes, the floor was wet all over. I left the doors open all afternoon while I mowed and it never dried. As of now..........its still wet! Why would this be happening??

 

[Firedaniel]

Sounds like it is just sweating. Mine has done that when it was cold then a rapid warm up. It wont hurt anything....

Daniel

 

[kywildcat]

Once the weather stays warm, do you think this will stop happening??

 

[cool50]

Ya I think so, before I got my garage heated it did that all the time. Every year around this time it would do it, once it warms up for a little while it'll stop. Good luck

 

[Pasqualy]

Just the warm air hitting the cold concrete slab. Same thing happens to a beer bottle in the summer, warm air hits it and you have water drops all over the outside.

 

[TheIceMan]

Mine does the same thing this time of year. It stops once the concrete has warmed up. It's supposed to be 86* in Indy today..record high. My floor is like a pond today! LOL!

 

[95 Why J]

I hate this, would any type of concrete sealer do any good?

 

[trbomax]

2" of foam and then taped plastic under the slab would stop it,but its too late for that now. It wont hurt anything,and its common,just get any metal off the floor untill it stops or you will have rust spots that wont come off.

 

[lyonsac4242]

83/84 in IL and mine did the same thing today. It was a blessing in disguise as I wiped up the water with old surgical towels to clean the floor. So, still wet, but now the dirt is almost all gone! My garage is perfect, except it should be twice as big. ;-)

 

[ChevyMan23]

Happens all the time here. Run over it with the squeegee, and its gone until next year...lol

 

[Boiler]

Yep, this was concerning me today too. Muncie (near indy) weather went from lows in the 30's and 40's last week to over 80 today. Mine too was like a pond, magnified by WD40 covered floor....somehow I need to clean it off...

 

[tdkkart]

I hate this, would any type of concrete sealer do any good?

2" of foam and then taped plastic under the slab would stop it,but its too late for that now. It wont hurt anything,and its common,just get any metal off the floor untill it stops or you will have rust spots that wont come off.

No, and no.
The moisture is coming out of the air, it is not coming from below.
Warm humid day outside, cool and dry inside, as soon as you open the doors the humid air starts condensing on the cool surfaces.
My shop is very well insulated with no windows and I keep the doors closed, it was almost 85* here yesterday and you nearly needed a coat inside the shop. If I had opened the doors I could have taken a bath on the floor.

As things warm up and everything equalizes it'll straighten out.

 

[trbomax]

The only thing I can tell you about the foam thing working is that the floor in my machine shop,and the wifes shop was done this way and its always dry. The garage/shop floor right next to it in the same building is wet in the spring,as yesterday when it was 75 deg here.The two sections are separated thermally only by a treated 2x6 that was part of the forming.

 

[James E]

Maybe the dirt under the slab stays cooler longer and the insulation allows the slab to adjust to the air temperature faster. No insulation means the slab would be cooler longer as the heat would transfer into the ground?