Posted on April 18,2015 by user-756436 in air sealing
In the last few years, energy consultants have developed a quick and easy way to pinpoint air leaks in a building envelope. The technique uses a theatrical fog machine — a small, inexpensive device that creates smoke-like fog for dances, Halloween parties, or theatrical events. Fog machines have heating elements that vaporize “fog juice,” a solution of water and glycol or water and glycerin.
With the help of a blower door or a window fan, a fog machine can dramatically reveal holes in a building envelope.