Construction companies have since moved away from using foundation vents because they let in too much humidity and moisture ...

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 four crawl space foundation vents that have flaps that can be opened or closed. The furnace people said to keep the vents closed all the time to prevent condensation from forming on ...

Q : You have often said that crawl space vents need to be opened in the winter. Why is that? I always thought they should be closed to keep my water pipes from freezing. A: I used to think the same ...

COLUMBIA, S.C. - 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., ...

Q: I read your online response about crawl space vents. I found it very informative. I reside on the coast. My house is located on a lagoon off the inner coastal waterway. The crawl space floor is ...

Q. I live in a house that is about 40 years old in the Chicago area. The man who built it built seven or eight other houses on our street. Our house has a three-quarter basement and one-quarter ...

Question: We live in the Piedmont section of North Carolina, and our home has a crawl space, with crawl space vents placed around the foundation. The vents have a wire positioner that allows them to ...

Q-We have a crawl space under our house that we use for occasional storage. A number of vents were installed that go through the foundation to allow cross ventilation in this crawl space. We were told ...