Be your own general contractor and save 25% without lifting a hammer, by Carl Heldmann. "Contractor-author Carl Heldmann has written the bible for people who want to act as their own general contractor." - LOS ANGELES TIMES
Crawl space vents provide crawl space ventilation that will help prevent mildew and rot. Crawl spaces are a source of moisture in a home providing an environment for mold, fungi, and insects that destroy wood framing. Proper ventilation of the crawl space is important...continued.