Air Sealing

Aaron writes: I own a post-and-beam house built in Portland, OR, in the 1950's with no insulation. The entire house has an exposed beam ceiling that we do not want to cover up, so we plan to put rigid foam above the roof sheathing. On the walls, however, we are getting conflicting advice and strong arguments for each option -- drill-and-fill cellulose vs. exterior foam. I do … [Read more...] about Dense-Pack vs. Exterior Foam Insulation