September/October 2005
This article originally appeared in the September/October 2005 issue of Home Energy Magazine.
Click here to read more articles about Archive
September 01, 2005
Crawlspace Conundrum In his column,“Crawlspace Conundrum” (May/June ’05, p. 8), Brad Turk gave a solution for an arid climate but not a green-grass climate. Exhausting air from the crawlspace will load the home and the crawlspace with humid outside air. The most important measure is placing a plastic cover on the earth. Next, seal the outside vents to prevent humid outdoor air from entering the crawlspace. Dehumidify, if necessary, to maintain relative humidity at less than 60% throughout the summer. Ken GehringMadison,Wisconsin Author Brad Turk replies:It seems that the author of the comments and I both agree that outdoor air in crawlspaces is not desirable. My basicrecommendations for controlling moisture in crawlspaces apply to most climates and include creating a conditioned crawlspace by sealing air leaks between the crawlspace and outdoors (including closing vents), sealing the soil surface, fixing plumbing leaks and drainage problems, and using a small fan to exhaust crawlspace air to the outside while pulling conditioned replacement air from upstairs. If these measures aren’t effective or practical, then a dehumidifier may be appropriate—keeping in mind that (1) the dehumidifier should be sized properly, (2) the dehumidifier willneed to be checked regularly, (3) ...

To read complete online articles, you need to sign up for an Online Subscription.

Once an order has been placed there is an automatic $10 processing fee that will be deducted with any cancellation.

The Home Energy Online articles are for personal use only and may not be printed for distribution. For permission to reprint, please send an e-mail to

Email Newsletter

Home Energy E-Newsletter

Sign up for our free monthly

Harness the power of

Get the Home Energy