Everyone has walked into a basement at some time or another and smelled that unmistakable damp, musty odor. The primary cause of it is excessive humidity, which is prevalent in the summer when it’s humid outside. (For those of you living in the desert, you get dry air but extreme temperatures.)
A common misconception is people think that humid air is heavier than non-humid air. It is actually lighter. Humidity rises, just as steam rises out of a pot of boiling water. If you can’t control humidity in the basement, for example, humidity transfers into the wood subfloor, goes up through the carpet, and continues upward through the first floor.
Dryeaz Air Scrubers
Dryeaz Air Blowers
FLIR MR 176 and MR 277 moisture meter
FLIR E95 Thermo Camera