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article_keywords:(conditioned crawlspaces vapor retarding ground cover continuously operating exhaust fan) article_title:(conditioned crawlspaces vapor retarding ground cover continuously operating exhaust fan)^4
Replacing crawl space vents with an exhaust fan and drawing house air in to condition the crawl space reduces moisture problems and can increase energy efficiency.
Moisture-laden air can damage insulation and framing members, but a continuous vapor barrier helps prevent this from happening.
Ordinary paint as a replacement for poly vapor retarder (52 KB)
New research evidence and field experience are leading to the conclusion that even in very cold regions, polyethylene vapor retarders are probably overkill and that ordinary paint should provide adequ...
Basement and Conditioned Crawlspace Insualtion Building Tips (214 KB)Basement and Conditioned (Unvented) Crawlspace Insualtion Building Tips from Building America Best Practices Series: Volume 3
Problem: Providing adequate attic ventilation has been a requirement in building codes for several years. The standard ratio for ventilating an attic assembly is 1 to 150 of the area of the space to...
Building Operator Energy Efficiency Ideas (169 KB)For building operators, the bottom line often is the cost of energy. Energy efficiency investments pay for themselves. There are numerous opportunities that generally involve maintenance and operation...
Crawlspace Insulation (235 KB)A properly sealed, moisture-protected, and insulated crawlspace will increase comfort, save on energy costs, improve the durability of the home, and reduce entry of moisture, radon, and other potentia...
Whole house fan (291 KB)A whole house fan is a simple and inexpensive method of cooling a house. The fan draws cool outdoor air inside through open windows and exhausts hot room air through the attic to the outside. The resu...
Cavity insulation is used within the wood- or metal-framed wall, while rigid continuous insulation (c.i.) is placed on the exterior side of the framing.
Crawlspace Insulation (235 kb)A properly sealed, moisture-protected, and insulated crawlspace will increase comfort, save on energy costs, improve the durability of the home, and reduce entry of moisture, radon, and other potentia...