DEAR TIM: I’m replacing my bath exhaust fan. The old fan was vented through the soffit. I don’t believe I have an attic, as there seems to be no access to the space. My roof is sloped but my bath ...

Roof styles have gone through a lot of significant changes over the years. Who can forget the 1950s contemporary houses that sported flat roofs? Then there were “Cape Cods” with the doghouse dormers ...

Q: Even though we have done a good deal of work to increase energy efficiency in our 1960 split-level home in San Carlos, we are having a difficult time keeping the warm air inside the house during ...

A. I always turn to Joseph Lstiburek, founding principal of Building Science Corp., for guidance on ventilation and insulation issues. “Doc L.” (he has a doctorate of philosophy in building science) ...

I have followed your column in The Capital for years and have come to value your opinion on construction matters. I now have an unresolved question and seek your opinion on this matter. The subject is ...

Q–I want to insulate the wood room-addition of my brick duplex house. What`s the best way to do this? Is there a ”This Old House” video on this subject? A–Although we`ve shown how to install ...

Q. I believe you've stated that the best ventilation for an attic is a ridge vent and long, continuous soffit vents. My question is what happens when the ridge vent is under 3-4 feet of snow. Should I ...