18
MEP USER GUIDE
Excess moisture trapped behind covering materials
such as ceramic tiles, carpet, wall coverings etc can
cause major problems. For instance, excess moisture
behind ceramic tiles on drywall or other substrates can
cause decay, delamination and mold growth, the longer
these problems go undetected the worse the problem
can get eventually leading to system failure.
As calibration is not practical because of the variation in
composition of these types of construction, tests
should be carried out on a comparative basis selecting
the most appropriate scale, and readings should be
taken from the 0 to 100 comparative scale on the meter
dial.
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