Concrete Sweating Under Carpet

Remove the taped plastic and assess the nature of wetness.

Concrete sweating under carpet.

If the concrete patch that was sealed is completely dry and the rest of the floor is wet it is an indication of a sweating floor caused by humid air outside but if the patch is wet and the rest of the floor dry it is an indication of a moisture problem. In this article we study the phenomenon of. Why does my concrete floor sweat. This can cause issues with mold and mildew especially if you have carpet or.

Find out how improving drainage conditions cleaning gutters and using a concrete sealer will stop a concrete floor from sweating with condensation. You then have two options depending on your circumstances. This is not actually a problem with the construction however but an issue that can often be controlled or eliminated by changing the upkeep of the area and in some cases the controlled climate conditions. Concrete sweating usually occurs when warm air comes into contact with a cooler concrete slab and it causes the concrete floor to sweat.

Concrete sweating is the phenomena of accumulation of water droplets on the surface of concrete due to the difference in temperature of the outer environment and concrete. Faulty missing vapor barrier moisture from the ground can seep up and surface through the concrete if no vapor barrier has been installed or is faulty. A sweating concrete floor can be a real nuisance that can create a slippery surface and make the floor damp. Humidity warm and humid air condenses into surface moisture when it comes into contact with the cool surface of your concrete floor or slab.

For below grade slabs assume that the concrete floor will get damp at some point. And both of the options use the same layers of 1 2 in. Mysteriously enough even if you do not have bare concrete floors and you have carpet tile vinyl or wood flooring moisture and condensation can still cause sweating slab syndrome with temperature fluctuations. After a humid night water vapor in the air will come into contact with the cooler concrete floor and will condense into morning dew.

Causes of surface dampness on concrete slabs and garage floors. Plywood carpet pad and carpet as shown. If you have concrete in your home that routinely appears to be wet or feels damp then you may have sweating slab syndrome. Concrete s porous nature means that water from under your home can seep up through your concrete floor making it damp.

There was however sweating on top the underlayment that rested on the concrete floor but under the underlayment was not wet but had very cold concrete much colder than other areas of the floor. Any kind of persistent moisture will allow mold to get a foothold and soon ruin carpet or wood flooring. Learn how to fix a sweating concrete floor.