Dining area looking toward kitchen and sitting room. The floor is concrete: structural material used as finish, ground and polished using the Retro Plate system. It has 6” of foam insulation underneath (R-24), so it will never be cold, always room temperature.
The walls are similarly superinsulated (R-49), which make for nice deep window sills! Photo 3 of 8 in Right-Sized Passive Home by TBDA

Right-Sized Passive Home

3 of 8

Dining area looking toward kitchen and sitting room. The floor is concrete: structural material used as finish, ground and polished using the Retro Plate system. It has 6” of foam insulation underneath (R-24), so it will never be cold, always room temperature.
The walls are similarly superinsulated (R-49), which make for nice deep window sills!