Last time on Building Resilience, we were cutting styrofoam, gluing the back, and sticking it to the walls in two crawlspaces, where we had already plopped it on the floor. That’s when we broke out the froth packs."Spray foam insulation. It’s a big part of how we build today, it’s one of the key ingredients in our building type.
The updates are really only a big deal if you live in climate zones 4 or 5, like 65% (or so) of America does. But don't worry, climate change is making it smarter than ever to exceed the code minimum.