Insulation is under way. We are using a mixture of materials for different parts of the application. The walls in the lower garage and shop start with closed cell foam, and have R19 batts applied on top of those. The primary purpose of the close cell phone there is to seal up the garage/shop from the rest of the house, and the batts are a material designed for acoustical isolation as well as the standard thermal properties. Interestingly the batts are somewhat eco -friendly in that they use a natural plant based binder as well as sand, so no phenol-formaldehyde.

Most of the main and upper floor walls are using blown in high density cellulose insulation, which with the 5.5″ thick cavity gives the walls an R19. There is some closed cell on the walls with concrete foundation exposure, as well as the areas under the metal roof (effectively actic-less). The main attic will be blow in with 18″ of cellulose (R60). Some of the longer walls have rockwool insulation for fire prevention.

The deck coating system is also getting installed. It is a sealed membrane system with a stainless steel mesh followed by a concrete like polymer material in multiple layers.