Thermal Imaging basically involves an infrared camera measuring the temperature of the surface it is pointed at-displaying very sensitive variations. In order to detect damp timber and other wall/roof members, the camera will differentiate between the temperature of the wall lining and the temperature of the stud.
The mass of the stud will provide a slightly different wall surface temperature. If the stud is wet there will be further temperature variance. These varying temperatures are converted to an image and displayed on a LCD screen.
Eden Pacific (NZ) Ltd can offer the use of Thermal Imaging as an addition to your pre purchase, pre sale or moisture assessment.
As a non-destructive detection method, using an infrared camera has a number of advantages over other methods, and a few disadvantages.
Advantages of Thermal Imaging
- The method is quick
- It is a non-intrusive means of investigation
- Does not require relocation of the occupants
- Features an illustrative visual presentation of findings
- Confirms failure points and moisture migration paths
Disadvantages of Thermal Imaging
- The method only detects surface temperature differentials and can not see through walls
- It cannot detect subsurface damage.
- Results can vary dependant upon on site conditions.