Revised wall system

The builder made a few alterations to the wall system on site. In particular, the sill system has been altered. Flooring and base boards are new to the design as well. The extra insulation needed for the foundation needed for the heated floor slab complicate the design a little. Obviously, styrofoam is not going to support the wall trusses.

On the other hand, the wall trusses are supported by the timber frame. It's still nice to have part of the wall trusses over the concrete foundation. The southern wall will feature a 4'9'' wide awning to allow full sun on the windows in the winter but little or no sun in the summer. To support the awning, 2'' x 8'' wall studs will be added in line with the trusses.

The photo shows a cross section of the wall system, including the sill board. The shiplapped siding will come down over the foundation insulation and will be sealed at the bottom (seal not shown) to prevent moisture infiltration.