Q. This week: My five year old second home has a five foot tall crawl space with a concrete floor (copper and PVC pipes and ductwork are down there, and a suspended 80,000 BTU transverse furnace).

Q-My house has an unfinished crawl space under an addition that was built some years ago. This past winter I noticed that many of the joists were damp with condensation and that the cement block ...

Finally examine the ventilation of the crawl space. This means the foundation vents. Make sure they aren't blocked by plantings and that there are enough of them. Here, more is better.

Q–Our 6-year-old house has a partial basement with a 20-by-4-foot crawl space. Because the house is large, the basement is adequate for our needs. However, the crawl space is open to the base… ...

Saito advises, ‘Standard requirements commonly include ventilation and you need one square foot of vent space for every 150 square feet in the crawl space’. That calculation is with no vapor ...

Q. We have a crawl space under the front of our house that, to our horror, had become a rat condo, unbeknownst to us until the odor of urine began to permeate the living space above. (We had not ...

As long as the ventilation to the crawl space is blocked, it can work well. But you need to fight the humidity intake of the space or you’ll run into problems quickly.

Beyond ventilation, take these additional steps to prevent moisture buildup in your crawl space: Fix any plumbing leaks. Keep gutters and downspouts clear and in good condition.

In most places, you need 1 square foot of ventilation for every 150 square feet of crawl space, but in Washington state, that’s been revised to 1e square foot for every 300 square feet.

Many building codes in the southeastern United States call for increased attic and crawl space ventilation to fight moisture and related IAQ problems. Craig DeWitt, Ph.D., P.E., challenged that notion ...

Q: I would appreciate your opinion on whether I should hire a company to line the crawl space of my house. It's about 2,400 square feet, and I suspect the work would be pretty pricey. Is it worth ...