Moisture in walls

Locating issues in a gyprock wall is easier using technology. An iTracker radar unit can locate any moist areas in a gyprock wall, using the various built-in sensors. 
The thermal camera function is used first to find areas of temperature variation. Dark purple areas are cooler than surrounding areas and show areas of concern that require further investigation. This moisture is then confirmed with the built-in moisture meter. The radar unit can then be used over the same area to look for termite activity. Termites live in moist timber framing. On the outside of this wall, the timber cladding simply had an unfilled nail hole. Luckily no termite movement was seen on the radar unit during this inspection. There is a high expectation of mould growing inside this wall cavity and the gyprock must be removed to confirm this. A cavity camera can be used, or simply a vent hole can be cut into the wall, that then gets covered over with a clip-in vent. This helps to vent and dry out the wall area if no mould is discovered on the piece cut out. If the gyprock is found to be mouldy, the gyprock should all be removed, allowing for the timber framework to dry out. Any insulation will need to be replaced if wet. Then the exterior hole should be filled and painted.