Q: I would like to install insulation and drywall to finish off a poured-concrete basement wall. Although the basement is high and dry, with no signs of moisture problems, I’m still concerned about condensation. I’d like to know where to install the vapor barrier, if any, and whether there is any advantage to sealing the concrete wall with paint.
Q: Is it necessary to provide ventilation under shingles installed over SIP (structural insulated panel) roofs? I’ve heard that shingles installed directly over SIPs, without a vent cavity, fail prematurely.
Q: Puzzled by conflicting energy advice? We asked our panel experts to help out by summarizing the latest thinking on a number of thorny issues.
Despite rumors to the contrary, vapor barriers are just as important as ever, says guest columnist Bill Rose.
