Q: My house is built on a crawl space, like most of the houses in my area. Only part of the dirt floor of the space is covered with plastic. Do I need this plastic cover, and if so, what thickness do ...

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 ...

If you live in Pacifica, there’s a good chance you live in an older home — built in the ’70s or ’80s, with raised floor over a bare-dirt crawl space. Probably the building’s undergone some renovation ...

Q: The crawl space under my 1910 home is 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 and rubble ...

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–My room addition is built over a crawl space. The air in our family room always smells musty even though the foundation vents are open and the uncovered dirt in the crawl space seems very dry. We ...

Question: 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 ...