Floor Plastic Moisture Test

Concrete moisture and vapor test methods 1.

Floor plastic moisture test.

The presence of moisture beading underneath the plastic is a good indicator that there is a big moisture issue. If moisture appeared on the underside of the plastic consider checking the moisture level with a calcium chloride test or a relative humidity meter. Astm f2170 standard test method for determining relative humidity in concrete floor slabs using in situ probes. After 72 hours a humidity reading is taken under the plastic with a dew point hygrometer.

Concrete slabs are naturally breathing elements of a home readily taking in moisture and air expanding and contracting and shifting with nature. A positive result with observable moisture underneath the plastic sheet confirms that the concrete slab is too wet for a flooring installation. Duct tape an 18 inch square piece of plastic onto the exposed concrete and leave it for 16 hours. However the reverse is not true.

To use this method astm d 4263 standard test method for indicating moisture in concrete by the plastic sheet method a plastic sheet is tightly taped to the concrete. The test shall be conducted prior to the use of coating. This test method covers the quantitative determination of the rate of moisture vapor emitted from below grade on grade and above grade suspended bare concrete floors. A sheet of plastic or rubber tape prior to painting your floor it is impor.

Performing a moisture test. Once you have done this simple test it is best to have the other more expensive more extensive more trust worthy tests done by professional flooring installers. How to test a concrete floor for excessive moisture. So it is suitable for the case where the application of coatings for concrete surface is planned.

Plastic sheet test astm d 4263 the plastic sheet method was developed by astm international and involves taping a plastic sheet to the surface of the concrete to create a vapor proof seal around the plastic. Checking your concrete for moisture. Plastic sheet test astm d 4263 plastic sheet testing method used to indicate the presence of moisture in concrete. Condensed moisture accumulation under the plastic at 16 hours can.

A negative test result a dry plastic sheet with no observable moisture underneath does not necessarily confirm that the slab is sufficiently dry.