When a concrete slab has not completely dried out and an LVT floor is installed, no more moisture can evaporate through the surface. However, over time the dryer top portion of the concrete will pull up the excess moisture from the bottom until the moisture is equally distributed between top and bottom portions of the […]
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Can there be moisture problems with LVT floor coverings?The answer is yes! See photo showing an LVT floor which shows cupping. I received an Email from a customer who had installed an LVT floor directly over concrete and he wanted to buy a pin meter from us to measure the moisture in the concrete slab […]
Read More >The Ligno-DuoTec BW is a dual-depth pinless meter for wood floors, bamboo, and gypsum. The meter in pinless mode also gives comparative readings of concrete and other materials (Photo 2). The Ligno-DuoTec BW meter can be used with the RH BluePeg Probes to measure ambient conditions of air and in-situ RH probes in concrete. Taking […]
Read More >The RH BluePeg uses a single microchip, factory calibrated to NIST Standards. Each BluePeg comes with a NIST traceable certificate. The RH BluePeg probes comply with the latest ASTM F2170. For the first year, Lignomat offers to check the probe calibration at no charge. For sensitive tests, the calibration of the removable probes could be […]
Read More >When placing a floor covering over concrete slabs, a contractor must first evaluate the concrete to ensure proper acclimation has been met. We often use two different methods for evaluating moisture in materials: a qualitative analysis and a quantitative analysis. Qualitative vs Quantitative Analysis Often times with a moisture meter we describe the scale as […]
Read More >Water in concrete is presented in three stages: as free water held by capillarity, as absorbed water held by surface forces and as bound water held chemically. The ideal method of moisture measurement should quantify amounts of these three states, but this is a difficult task because moisture in concrete is not uniformly distributed, and […]
Read More >Why the In-situ Probe Test is important Concrete slabs are an integral part of a building. Excess moisture in a slab will over time be released and can affect the entire building including in particular floor coverings. The ASTM F2170 in-situ probe test was created to accurately measure the moisture that would be released once […]
Read More >Please use the link below to view Lignomat YouTube video. The following video demonstrates Lignomat’s RH in-situ probe method. This follows the ASTM standard F2170. The new standard allows testing results after 24 hrs of acclimation.
Read More >May 2017, Issue No. 20 AT A GLANCE *How to use a reference scale when analyzing a concrete slab Lignomat’s Unique Design for Taking Measurements Using ASTM F-2170 * Special Offer Lignomat Product Video Lignomat in situ probe method for ASTM F2170 (Watch Video) Lignomat Ligno-Scanner SDM (Watch Video) Keep in Touch: PHONE: (800) […]
Read More >August 2016, Issue No. 18 AT A GLANCE *Storing and Acclimateing Your Lumber * Moisture in Concrete: Free and Bound Moisture Interesting Websites Concrete Floors and Moisture (read more) Scientific article about different methods to measure moisture in concrete. Great information about the different types of water in concrete. (read more) Keep in Touch: PHONE: […]
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