Q: I’m building a crawl space foundation for a small add-on to my home and was told I’d have to ventilate it. Since it is mostly dirt and concrete, is venting it really that important? What are my ...

Is your house built over an unheated crawl space? And if so, are your crawl space vents open or closed right now? It turns out that the issue of crawl space vents is fairly complicated and even a ...

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 ...