If like a lot of LEED professionals you're used to using shorthand like MRc4 to refer to the recycled content credit, and EAc1 for energy performance, LEED v4 throws a curveball into your jargon.
I’m not a frequent social activist. In fact, I haven’t been to a major rally since my college days. But when my teenage daughter gets excited about something I care about, I'm all in! And she was getting excited by the social media buzz about the People's Climate March. So, with some last minute scrambling, I headed down to NYC with family and friends to the big March.
One of my first research projects when I started at the NAHB Research Center in 1993 was looking into a new insulation: Icynene. We were evaluating its performance as a spray-applied, open-cavity insulation as well as an injection foam in closed cavities. I was enamored: this seemed to be a miracle insulation that installed itself, sealing up tight even in the toughest and most complicated building cavities.