Can stack effect be stopped with negative pressure?
First we need to know if the crawl space is also open to a partial basement, if there is plastic covering the ground in the crawl space, any insulation in the crawl space ceiling or plastic on the underside of the upper level floor joists. Also what is meant by "Dirty Air"? Is it visibly dirty or is it smelly, or what??
More information would make it possible to give more detailed suggestions!!!!!
|