More HVAC and drywall work. The make-up air ducting was installed on top of the roof, and extending into the interior of the room. The ducting does not reach the LVEA wall yet. The interior drywall was installed, both on the walls and on the ceiling. Some patching between sheetrock boards was done on the exterior floating wall. More HVAC work to be done next week.

Good dust counts for the day, counts were below 2000 for most of the day at 0.5 and 0.3 microns at the 2K PSL - and this was while they were cutting a hole in the roof!