I want to finish our basement and plan to use a plastic underlayment
product (http://www.systemplaton.com ) just "in-case" any hydrostatic
moisture bubbles up. I'm looking for a dehumidifier with external
sensors so I can place them under the flooring (in the air channels) in
the middle of the rooms. The unit itelf will be placed in the HVAC area
near one of the corners of the basement. With the sensors under the
flooring, the unit should turn on any time hydrostatic starts to be a
problem, way ahead of the time that I would notice (if I even *do*
notice) the moisture running into the HVAC area (from below the
Does that make sense? I haven't been able to find a dehumidifier unit
with such capabilities. Any ideas?
This doesn't make much sense to me. Turning the dehumidifier on isn't
going to do a whole lot until there is actually some humidity in the
HVAC area (is this a closet?) to remove. Ultimately a standalone
dehumidifier (as opposed to whole house) can only dehumidify the air in
its immediate vicinity so there generally isn't a need for a remote
I'm banking on the air channels under the Platon underlayment for air
flow (that's what the it's made for) but not to the extent that there's
so much moisture under the floor (in the middle) that it starts to
raise the humidity in the corner of the room where the dehumidifier
will be. Hard to explain, but imagine a 30'x30' concrete slab and then
the underlayment in the middle going to the foundation walls but
stopping short 6" away (for the stud walls and extra air flow). Then
picture one corner of the room, roughly 5'x5' with no underlayment
The idea is to create an opportunity for any moisture under the plastic
subfloor (Platon) to meet the basement air so it can evaporate. This is
done by stopping the underlayment 6" short of the exterior walls and
also the 5'x5' HVAC area where it's just a concrete floor.
If any moisture bubbles up in the middle of the floor, under the
Platon, it would take a significant amount in order to create a puddle
that extends to either the HVAC area or the 6" perimeter gap. I would
like a sensor under there to catch the presence of water ASAP and not
rely on it traveling to the perimeter. Because in some cases, there may
only be surface moisture and not standing water. I'd rather have the
dehumidifier turned on in that case (helping to dry everything) than to
not know there's even moisture present.
Of course, this could all be overkill. Maybe I should just rely on the
Platon to do it's job, and if there's enough water under there to raise
the overall humidity in the basement then the humidifier will kick-on.
If there is just surface moisture, then so be it since it can't get
through the Platon to the subfloor and carpet anyway.
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