Timelapse update and the conditioned crawlspace

They may look somewhat like legos, but the white panels you see are actually Insulating Concrete Forms (ICFs). ICFs are usually made with a rigid thermal insulation and are stacked and filled with concrete. In this case they are being used to line the conditioned crawlspace at the Greisman Residence. Having the crawlspace being within the thermal envelope allows for higher efficiency of HVAC ducting that runs through that crawlspace. Good building science applied!