Condensation Under Plastic On Basement Floor

Condensed moisture accumulation under the plastic at 16 hours can indicate a problem.

Condensation under plastic on basement floor. Tape the plastic on the floor slab when dry ensuring the edges are completely sealed and wait until the floor shows signs of wetness. They may be mold blackened and you may even see water dripping. Both dripping condensation and a basement leak will leave a puddle on your basement floor. The house has five vents three on the west side and two on the east.

Start by drying off a section of your basement wall about a foot square then cut a piece of aluminum cooking foil just a little smaller in size. If you find a puddle on your basement floor you need to investigate further in order to positively determine the cause of the puddle. All you need is a 16 inch piece of square shaped plastic and tape. Many homeowners see this moisture and believe they are experiencing basement wall leakage when in fact the accumulated moisture is from condensation.

The slab will absorb some of the condensation. Duct tape an 18 inch square piece of plastic onto the exposed concrete and leave it for 16 hours. What could be causing the moisture problem under my house eve. I have insulation between the floor joists with plastic stapled underneath.

One of the simplest most economical test methods for determining whether there may be moisture in concrete is the astm d 4263 concrete moisture test. As the walls cool the warm air moisture is created just like condensation on a cold beer on a hot summer day. Basement condensation occurs when warm moist air comes in contact with your cool basement walls and floor. The moisture is probably the result of.

If the outside air is warm and humid it will condense on the cool basement wall and floor surfaces. This is straightforward and easy to do. You know when dew or condensation starts to form. In the summertime basement windows may be opened for fresh air.

Step 1 determine if the water on your basement walls is from condensation or migrating in through the foundation wall. To prevent this damage to the floor framing install a vapor barrier consisting of one or more layers of sheet plastic six mil visqueen on top of the soil in the crawlspace or basement. The crawlspace under my house is wet with sweat from condensation. The dew point is the temperature at which the air can hold no more moisture.

During the summer when condensation occurs the most condensate on the basement floor is often confused with a basement leak. Cut around piers and along the inside edge of the foundation. Go into the crawlspace under the floor and look for signs of moisture on the joists.