| Material/System | House #1, Block | House #2, AAC | House #3, Frame | |
| Conventional Construction | Exterior Wall System | Concrete Block | Autoclaved Aerated Concrete Blocks (AAC) | 2 X 4 Wood Frame |
| Wall Insulation (Overall R-value) | R-4.2 Foam Board (6.1) | None (11.5) | R-11 Fiberglass Batts | |
| Caonditioned Area | 1,228 square feet | |||
| Orientation (front door) | North | |||
| Foundation | Slab on Grade | |||
| Ceiling Insulation | R-30 | |||
| Energy Star Enhancements | Air Conditioning Equipment | High Efficiency Heat Pump, SEER = 12, HSPF = 7.5 | ||
| Duct System | R-6 Insulated Ducts Sealed with Mesh and Mastic in Attic | |||
| Air Handler Location | Conditioned Space | |||
| Infiltration Reduction | Penetrations in Thermal Envelope Sealed | |||
| Special Features | Reduced VOC Materials | None | Low Emission -Carpet (100% Nylon) -Carpet Pad -Cabinets | None |
| Window Type | Single Pane Clear | Double Pane Clear | Double Pane LowE (Shading Coefficient = 0.41) | |
| Ventilation System | None | Fresh Air System -Outside Air Duct -RanRecycler Control -Transfer Ducts -1" Pleated Filter | None | |
| Additional Attic Features | None | None | -Enhanced Attic Ventilation -Radiant Barrier | |