Subfloor work has begun

I'm using Advantech OSB subfloor which seems to have maximum moisture repelling properties. Drilling the tapcons into the board is more difficult than it should be. The concrete dust has 2 1/4" of material to come up through, which it usually doesn't, even with a vacuum.

HT Riser finished

The Home Theater riser has been bolted to the ground using Red head concrete bolts:

Then I filled the spaces with Roxul insulation to prevent it from becoming a boom box:

HT Riser mostly built

The riser is 7' x 12' x 6". Would like it higher, but the bulkhead prevents this (I would be constantly hitting my head stepping onto the platform). The riser doesn't go all the way to the left wall, as I will be putting a large equipment rack there.

More drywall photos

The drywall guys did a great job installing how I wanted it done. See the photo gallery for 12 photos of the drywall job. Green glue was used between each drywall layer, and acoustic caulking (brown or grey) was used to fill the gaps and seams between each wall. As the guys installed the drywall, I was already able to hear the sound reduction.

Next: Installing XPS foam, and then subfloor in the two rooms.

Drywall photos

A couple of 180 degree panoramas of the drywall work...

Main living area

Home theater