The FeedBack DataLogger from Tramex is designed with flooring installers and inspectors in mind, helping to make the job of moisture testing concrete much easier by allowing for storage of measurements of in-situ ERH as well as ambient conditions simultaneously. This can be done in a couple of useful ways.
The ‘Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes’ was revised In February 2018, reducing the waiting time from 72 hours to 24 hours. This is a welcome development as accurate results can be attained in a shorter time.
In the restoration industry, the level of understanding of moisture in building materials is generally very high. However, there is a tendency to treat concrete with suspicion and it is not uncommon for waivers to be used to reduce liability for the drying contractor.
Moisture problems in flooring originate from various sources and can affect floor coverings in different ways. As these variables are so influential, they also need to be measured and compared.
When 25mm or 50mm of insulation in a flat roof was the norm, Thermal Performance was still regarded as a luxury by many. Clients often resented the additional cost; “Why can’t I just have a new waterproofing?”; “What use is that to my bottom line?” etc. However, increasing energy prices, fuel shortages, sustainability and demand for higher comfort levels now require more insulation.
ASTM F2170 is an excellent test for determining the actual moisture condition of a slab. As a result, this type of test is recommended by many international standards including ASTM, British Standards, and most Scandinavian standards, as well as being specified by floor covering, coating and adhesive manufacturers worldwide.