Flat roof inspections are a great way to find those leaks which are nearly impossible to find visually. Roof inspections are done at night after the sun goes down. How it works: during the day the sun heats up the roof, when the sun goes down the roof starts to cool. Areas of wet insulation stay hotter longer than areas with dry insulation making them visible with infrared.

             Aerial Infrared Roof Moisture Surveying

Aerial infrared roof inspections are of superior quality, especially when you have a roof that exceeds 100,000 sqf. The entire roof is captured in one image, it's like Google Earth in infrared. You also get a cad drawing that outlines areas of suspect moisture contamination along with a digital image. The other benefit is no arrangements have to be made by having technicians on the roof at night.