Why Fall and Winter Are the Best Seasons for Thermal Imaging Leak Detection in BC

Thermal imaging for leak detection works by detecting temperature differences on building surfaces. When moisture is present, it creates a temperature differential—evaporating water cools the surface, while wet insulation loses its thermal resistance. These temperature differences are most visible when there is a significant temperature difference between the interior and exterior of the building.

In BC, the optimal thermal imaging season runs from October through March. During these months, buildings are heated, creating a 15-30°C temperature differential between inside and outside. This temperature difference makes moisture patterns clearly visible with infrared cameras. In summer, when indoor and outdoor temperatures are similar, moisture patterns may not be detectable.

For BC property owners, this means the fall and winter months are the ideal time to schedule thermal imaging surveys. Annual inspections conducted during the heating season provide the most accurate results and the earliest detection of developing moisture issues. Waiting until spring or summer may miss moisture problems that become apparent only during the heating season.

Our technicians conduct thermal imaging surveys year-round, but we always note the limitations of off-season inspections. For the most accurate results, we recommend scheduling surveys between October and March. For emergency situations, we can conduct thermal imaging at any time of year using supplemental heating or cooling to create the necessary temperature differential.

LeakInspections.ca — a division of Anyleak.ca and Leak.ca — provides professional thermal imaging surveys across BC. Call 604-239-9934 to schedule your winter inspection.