Up in the loft the last straw bales are going in. This area is just above the tub on the first floor so I used conventional stick framing to make the walls less permeable to moisture from the tub and shower. You can see here the extra layer of rock-wool insulation on the outside. Way overkill on the insulation but it was much easier to set these bale vertically than cut them all around the 2x6s and wiring.