A dirt floor in a basement or crawl space can be a major source of moisture problems. Lingering excess moisture can cause unpleasant odors, affect indoor air quality, and put the space at risk of mold ...

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 it?

DEAR TIM: The crawl space under my 1910 home is just exposed dirt and leftover building materials. I need to add a vapor barrier and wonder about the best one. The foundation consists of granite slabs ...

Q. I want to make my house more comfortable, but I have a crawl space. The access under the floor is not bad and the soil seems damp. What are my options when it comes to insulation that I can install ...

Question: I am having a house built partially on a slab and on a crawl space. Is it necessary to install a vapor barrier under the concrete, and is this something I can do myself to save some money?

Q:Thanks for your explanation on insulating a crawl space (Insulating, bracing crawl space a smart idea, Oct. 13). I have a rental house in San Carlos that gets mold on the walls near the floor in the ...

Q: I have a question about building codes in my county in Indiana back in 1990. I'm on the board of a condo association. I'm trying to find out where to look to find out if vapor barriers were ...