This home’s exterior envelope was constructed entirely from SIPs, and the interior was heated with a Ductless Heat Pump and included a Heat Recovery Ventilator for indoor air quality, all resulting in an extremely airtight, energy efficient non-standard home. While no building codes were ignored, the home incorporates several systems many building officials may be unfamiliar with.
![](https://www.buildinginnovations.org/wp-content/uploads/36cc53ea-fc1a-4a1d-be77-66c45528367f.jpeg)