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Old 01-10-2016, 07:47 PM   #1
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Moisture Meter , how do you?

I have a moisture meter and want to know what would be the acceptable % Moisture content of the floor should be or is there such a number?
How do you monitor your trailer 's floor for moisture? Do you take several readings along the perimeter as well as the center of the floor ,log that info and return say in a couple weeks time and compare the results ?
Is there a acceptable % of moisture in the floor at all times .

The unit I have is a EXTECH M0210. It is a OK unit employs pins .
One thing I don't like about it is you can't take a reading and hold it. You need to take a reading on the floor with the display upside down. Poor ergonomics here .
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Old 01-10-2016, 09:12 PM   #2
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I always compare to a dry piece of pine plywood I keep in a dry garage. The moisture content is relative to the humidity of the air. I find 5 - 6% is pretty normal during summer.
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Old 01-10-2016, 09:13 PM   #3
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Expect higher in very high humidity conditions and lower in arid environments.
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Old 01-10-2016, 10:20 PM   #4
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I use this one (Amazon, about $30) because the probe is on the coiled cable and I can reach into tight spots and still read it. I sharpened the probes so they go easily through the vinyl floor covering into the plywood subfloor.

I probe around the interior perimeter wherever I can reach. I open the outside storage hatchess and there is a little bit of gap between the aluminum diamond plate and the inside shell; probe the plywood there. Likely spots are below entrance door sides, below windows, and below awning support arms.

This meter needle will move about half way across by touching my dry finger. If I see any movement at all probing the floor I am very suspicious of a leak. Will pull the plastic baseboard screws, lift the vinyl edge to investigate and monitor to see if it drys out in a day or two. If the needle moves more than half way there is unwanted water and I look above the area for a leak, and seal.

The other source of high moisture at the perimeter is condensation dripping down the surface or between the aluminum walls. Could be from the windows. Most likely to happen in cool, very moist or rainy weather, especially if cooking or showering. If it happens, monitor it with the meter to ensure it dries out in a couple of days, or lift the vinyl edge to help it dry. Never leave it wet for a long time.

Not much point in probing the center areas, except under the shower door and near the toilet. Watch for plumbing leaks.

A good time to probe is after a long, heavy downpour, especially wind driven. I probe once a quarter along with my other corrosion and sealant inspections and system operational checks.
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Old 01-11-2016, 12:14 AM   #5
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Thanks guys for the tips . Doug like that simple moisture meter you have, with the extension probes . Keep It Simple eh.
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Old 01-11-2016, 05:49 AM   #6
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Thumbs up Welcome Aboard....

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Old 01-11-2016, 06:23 AM   #7
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Not sure what the KISS is all about for a particular meter. This is no more complicated, locks in your reading, and gives actual percentage readings instead of an ambiguous scale reading. A corded probe would be nice, but with locked in reading, not really necessary. But...to each their own.

http://www.amazon.com/General-Tools-...2514860&sr=1-3
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