Residential Concrete Moisture Testing скачать в хорошем качестве

Residential Concrete Moisture Testing

Prior to installing flooring in Residential applications on concrete subfloors, you should be testing for moisture. If you do not test for moisture, you open yourself up for potential moisture issues and failures. Moisture testing is cheap insurance to you as a flooring contractor. If you have a claim turn down because you did not do moisture testing, you could buy 20 plus of these meters and still have money to spend. Provide a service to your customer that your competition is not doing. The two recommended concrete moisture tests for resilient flooring are the Calcium Chloride Test or the RH Probe Test. To do these two tests in a residential application are difficult, time consuming and can be expensive. To do the Calcium Chloride Test, I must grind a 2’ x 2’ area of the concrete and let that sit open for 24 hours. I need to run 3 tests for the first 1,000 square feet. After 24 hours, I can set the Calcium Chloride Tests and then they must sit undisturbed for 24 hours. Also, the temperature of the home should be close to living conditions. Not very practical in a residential application. With the RH Probe, I need to run 3 tests for the first 1,000 square feet and then drill holes 40% depth of concrete, insert the moisture sensor and let it sit for 24 hours to achieve moisture equilibrium within the hole before taking measurements. Very disruptive and expensive to an occupied home. A possible solution and a suggestion is to use a concrete moisture meter like the Wagner Orion C555 or the Tramex CME5. These meters are quick and easy to use. Turn the meters on and place down onto the concrete which must be free of contaminants and dust free concrete and get your readings. Take multiple readings and record your readings on a diagram and job ticket. Take readings at exterior walls, pipes, or anywhere you think may be a potential issue. The Hardwood industry uses a reading of 4-4.5 or less. I would use that as your guide. Readings over 4-4.5, I suggest running a Calcium Chloride Test or the RH Probe Test. Both Meters have their own advantages. • The Wagner ORION C555 can read on a number scale (1 – 6.9), or it can be programed to read the surface RH of the concrete and also give you the concrete slab temperature and ambient air relative humidity. It also comes with a calibration plate to ensure proper readings. • The Tramex CME 5 reads a number scale (1 – 6), but can also be used for Gypsum underlayments (Gypcrete).