Blog articles

Are these rotating roof vents driven by wind, stack effect, or exhaust fans? Back in October, I wrote a blog post called “Can Buildings Take Vacation Too?” about the potential need

This question has come up several times in the last few years: what sort of moisture issues do we need to be concerned about if a building is “shut

In the first two rounds of soffit-to-ridge vent Wingnut testing (see Round 1 and Round 2 ), I used a simple and small easel test rig to simulate what

An environmental microscopist’s perspective In part I of this blog, we looked at some puzzling examples of unidentified substances from buildings I have investigated over the years and discussed

Is there a simple way to determine if something is alive, ever was? There is black mold that looks a lot like particulate and both or either can show

Does this new wall truss one-up double-stud walls and continuous exterior insulation? High-performance exterior walls typically handle thermal bridging at framing members in one of two ways—either the building