When that first real cold snap hits, it’s not your thermostat that’s going to betray you—it’s your insulation. You’ll feel it ...

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 ...

Cut rigid foam insulation into strips with a table saw or a circular saw. Cut the strips to fit between floor joists using a box cutter. How to Finish a Basement: Framing and Insulating Run a bead of ...

Q: We recently had an energy audit of our 2009 home because our utility bills seem to grow each year. In addition to sealing some areas the insulators missed, the auditor pointed out that the floor ...