Since laying down a vapor barrier doesn't entail sealing off all the air gaps, there's no need to install a humidifier — the ...
If you have a vapor barrier installed, such as the Viper CS Crawl Space Class A Woven Reinforced Vapor Barrier from Insulation4US, which Saito recommends, it's one square foot of vent space for ...
Sealing up your crawl space year-round can offer a lot more energy savings and even reduce humidity and mold, but you need to tackle moisture problems first. Most crawl spaces need a dehumidifier and ...