Low ceiling, don't forget to duct.............................

Here's how the crawlspace looks from below.

This area will house the air conditioning unit. It's much more efficient to have that in the cool crawlspace than in a warmer attic.

The floor is a thin layer of concrete to keep the vapor barrier below from deteriorating.

Looks like the next part of my duties as general job-site lackey is to re tape the vapor barrier on the side walls. Those walls will eventually be covered with sprayed foam insulation.