Water, Water Everywhere: solving the secrets of trapped moisture in walls

It happens every spring. Every build and building inspector knows the script: the phone call comes about the basement leak, a visit to the home is arranged and the inspection takes place. The wet insulation is visible through the ‘plastic stuff’. The plastic stuff is known as the vapour barrier, and in some cases, the air barrier.

During the investigation no leaks are found anywhere. A perfectly installed air gap drainage membrane is present, weeps are fully connected to an active sump, AND there is even a capillary break placed between the footing and the foundation wall (you don’t see that every day!). read more