Construction Design-Simple Air Sealing Strategies

I built my first home for a customer back in 2000, I’ve learned a lot since then.  One of the areas I’ve learned the most is in building tightness.  These days I’m working more as an energy auditor.  Conducting code compliance blower door testing on new homes and conducting energy audits, some with blower door testing on older homes.  I get to see where homes leak. Continue reading “Construction Design-Simple Air Sealing Strategies”

Construction Design-Interior Air Barrier? Exterior Air Barrier? Or Both!

When designing the concrete-less slab on grade home, I gave serious thought to the location of the air barrier.  I have used water resistive barrier (WRB) or house wraps for years without a good understanding how they work as an air barrier.  In my climate, most homes use polyethylene sheeting as an interior (and main) air barrier.  As it turns out, there are better choices. Continue reading “Construction Design-Interior Air Barrier? Exterior Air Barrier? Or Both!”