Moisture and damp diagnostics


Digital image

Digital image

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Infrared image: The purple colors are serious damp rising into the walls from a leak

Moisture intrusion and damp

Damp conditions can come from countless different reasons but can be minimized to the following headings

Condensation often form when the relative humidity in the house is too high with lack of ventilation to stabilize conditions. Inferior wall insulation contribute significantly to condensation.  The warmer the air, the more water vapor it can hold and when it cools down in corners where it is cooler, the vapor condensates making the area wet.

Mold and fungi can grow within 24 hours in ideal conditions and everyone knows that mold not only bring musty smells but also affect the health of  occupants  in particular asthmatic and respiratory problems.

Penetrating damp like underground supply leaks, bathroom leaks, inadequate rain water drainage, leaky roofs are examples of penetrating damp.

Rising damp is moisture rising  in  porous walls due to bad ground drainage. If you put the tip of a sugar block in tea, you can clearly see the ‘mechanics’ of rising damp.

Before any repairs are done, the most important issue  is to find the source of the damp or leak. If you repair damp related damage without fixing the source of the problem, it will be back wasting your time.  One way to detect, measure and record the extent of damp and moisture intrusion, thermal imaging can go straight to the heart of the problem and focus your energy where it should be. We also have a policy to confirm the presence of moisture with a professional moisture meter and can also measure the relative humidity in the house and establish dew point temperatures.

With our infrared moisture mapping services, you have graphic knowledge of the extent and severity of damp, helping you to streamline appropriate repairs.

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This ceiling had a leak. Thermal imaging quickly showed the extent of the leak. It is clearly localized and it came from a dripping toilet drain on the next floor.  One drop per second equal 36 liters per day! That is a 1000 liters going somewhere every month!

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Here is rain water infiltration from an exterior drain that was not well sealed. The rainwater followed the construction beams of the house where it eventually appeared in the basement lounge above the couch. The source of this leak was thought to come from the kitchen right above but thermal imaging revealed the truth.


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