Tag: damp crawl space

  • Beware of This Expensive Ventilation Scam

    Subtitle:  Three marketers of crawl space fans rely on customers who don’t know the science of air and moisture Images:  How much does an exhaust fan cost? Search online and you can find lots of them that move 200 cubic feet per minute (cfm) for $100 to $150. But, if you put one in a…