What is the most common moisture test method?
The calcium chloride test kit, which is a quantitative test, is the method recommended by most, if not all, resilient flooring manufacturers. This test, now an industry standard, ASTM F-1869, must be run in all areas where there is a concern for moisture. Calcium chloride tests are normally run for 60-72 hours depending upon the manufacturer. The results are expressed in terms of pounds per 1000 square feet per 24 hours. To install resilient flooring, the results must be 3 to 5 pounds/1000 sq. ft/24 hours or whatever the flooring manufacturer recommends. Calcium chloride test kits can usually be purchased from flooring and sundry supply distributors.
