Concrete Moisture Control
Common Reasons for Moisture Transmission
- Ground water intrusion.
- Water intrusion (re-wetting) of the slab prior to the enclosure of the building.
- Insufficient water drainage: moisture travels from the outside, into the concrete capillaries and through the flooring system.
- Absence or improper installation of a vapor barrier.
- Lack of adequate drying/curing time after the concrete is placed.
Methods of Testing Moisture Content
A calcium chloride test (ASTM F1869) and relative humidity test (ASTM F2170) are the two universally recognized tests used to assess moisture. These tests measure the moisture contained and emitted within the substrate. A pH test can be implemented to examine the surface of the concrete for alkaline salts, which can lead to adhesive failure as well.
DFC can remediate moisture issues while offering up to an unrivaled 25-year warranty with our Tru Self Leveling
DFC utilizes such products as SIKA MOISTURE CONTROL SYSTEM, a one-coat, 100% solids epoxy moisture management system that is formulated to suppress excessive moisture vapor emissions in new or existing concrete prior to installing an underlayment system.