Q: Should we insulate the rim-joist cavities of a crawlspace foundation? I am a builder, and where I live the codes require insulation, but I have discovered that the insulation causes decay and mold ...

Q: What are rim joists, and how do you insulate them? Our home was recently inspected, and the buyer asked that we pay for the repairs. Is this something I can do myself? A: Rim joists are the boards ...

Question: I have a crawlspace under my house. Last fall, I put insulation between the joists of one room to try to warm the floor somewhat. I put roll insulation between joists and nailed ...

Q: I saw your column a while back about sagging floorboards. Well, I have the opposite problem. A couple of spots underneath my living-room carpet feel like there is a “hump” there. When I pulled back ...

Q: How do you repair squeaking floors? The house is 47 years old and just walking across the floors creates a squeak. But it's only in certain areas, not the whole floor or room. Can we eliminate the ...