Welcome to Altheus Infrared!!!!!

23 years professional thermography experience

MOISTURE METER - NON-DESTRUCTIVE TESTING

 

Moisture Meter on roof - insulation saturated below
Roll Asphalt Roof - completely saturated insulation (except edges)

Applications for moisture meter include roof surveys, stucco walls and drywall.  This meter uses resistance - not probes - to determine if the subsurface is wet.  A simple 0 to 100% scale and audible indicator alert Altheus Infrared to the likely presence of moisture.  This piece of equipment does have its limitations... it can't be used on EPDM rubber, heavy ballast* or materials that are currently wet.

Roof surveys can be tricky even for the experienced thermographer... 

  1. White PVC membranes can be very reflective of heat, making the IR signature of water under the membrane tricky to find.  Non-absorbent insulations compound the issue... the moisture meter is used to verify the thermal signature on the fly.
  2. Pea gravel over a bitumen roof is often found in piles (from the wind or past repair work, etc.); these piles retain and re-radiate heat at about the same rate as moisture in a sun-warmed roof... the moisture meter helps separate the wet from the dry.
  3. Water below a roof membrane retains the heat from the sun longer than dry insulation, however, if the water is a thin film, it may not retain the heat for very long after sunset... by using our moisture meter, we can find even the slightest amount of water - even after the "signature" has faded. 
  4. *Heavy ballast is difficult to survey with IR.  The river rocks absorb and re-radiate the heat from the sun at roughly the same rate as the wet insulation that we are trying to detect, masking the thermal signature. Altheus' moisture meter can be used by brushing aside the stone and placing the meter directly on the membrane.  Do this in a grid pattern and the roof can quickly and accurately be surveyed.
  5. Aluminum topped roofs can be nearly impossible with today's longwave thermal imaging systems and impossible with capacitance moisture meters... but that doesn't mean that infrared can't be used... Talk to Altheus IR for proven alternatives to the standard roof survey!

Altheus Infrared takes the guess-work out of the equation.  Let us use put our technology to work for you.

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