Floor Plastic Moisture Test

Concrete slabs are naturally breathing elements of a home readily taking in moisture and air expanding and contracting and shifting with nature.

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. 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. Performing a moisture test.

Plastic sheet test astm d 4263 plastic sheet testing method used to indicate the presence of moisture in concrete. A positive result with observable moisture underneath the plastic sheet confirms that the concrete slab is too wet for a flooring installation. 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. A negative test result a dry plastic sheet with no observable moisture underneath does not necessarily confirm that the slab is sufficiently dry.

Concrete moisture and vapor test methods 1. A sheet of plastic or rubber tape prior to painting your floor it is impor. 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. How to test a concrete floor for excessive moisture.

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. The sheet is left in place for 72 hours then a dewpoint hygrometer is used to test the level of moisture that is in the air under the. However the reverse is not true. Duct tape an 18 inch square piece of plastic onto the exposed concrete and leave it for 16 hours.

Astm f2170 standard test method for determining relative humidity in concrete floor slabs using in situ probes. Condensed moisture accumulation under the plastic at 16 hours can. Checking your concrete for moisture. After 72 hours a humidity reading is taken under the plastic with a dew point hygrometer.

So it is suitable for the case where the application of coatings for concrete surface is planned.