Instructions / Assembly

12
Key Areas to Check:
hThe rear side of brick parapet walls — generally are not
waterproof above the flashing line and frequently absorb
moisture during rains.
hPainted concrete floors on ground — subject to peeling as
they absorb moisture from the earth, unless an effective
vapor barrier has been installed.
Tests on these materials should be made a day or so after they
have been exposed to rain or other high moisture conditions to
verify to what extent they absorb moisture.
Tracing Leaks
The BD-2100 can help trace leaks in masonry material.
Normally, dry plaster, brick, or concrete will contain so little
moisture it cannot be detected by the meter. If the meter
indicates the presence of moisture you can trace the moisture
to its origin.
To trace the origin of a leak:
hDrive a nail into an area that is known to be wet and attach an
insulated wire between the nail and one of the contact pins
^.
hApply the other pin to various parts of the wall where you suspect
the leak originates. If the meter indicates red or “wet”, the material
is wet between the points of contact. If the meter reads green or
“dry”, the material along this line is not in the path of a leak.
To confirm if a brick wall is waterproof:
Perform the following procedure after storms to verify if a brick wall
is waterproof, or if waterproofing repairs have been properly performed:
hDrive pairs of nails into the brick wherever it is necessary to
make the tests and leave them in place until after all the tests are
completed.
hTake readings after each storm, and record the readings. The
pattern of these readings will indicate if the brick is gradually
drying out or is moistened again by each storm.
Detecting Moisture in Insulation
Use the BD series meter with the #21-E Electrode and #608
insulated pins to detect moisture in insulation. These pins are
insulated, except at the tips. Only the uninsulated tips make
contact with the material, providing information as to the
depth at which moisture is present.