New Construction

Phius CORE

Phius CORE is Phius' legacy certification. It is focused on optimizing investment in passive and active conservation strategies to achieve superior performance and quality construction. CORE targets performance that is challenging but achievable with conservation measures only and has both a performance path for all buildings and a limited-scope prescriptive path for single-family/townhomes.

Phius CORE Prescriptive

The prescriptive standard takes a hybrid approach with prescriptions for both envelope and mechanical elements of the building and allows for some performance tradeoffs within those categories. It is limited to single family housing and was created to facilitate widespread adoption and scaling up.

Phius ZERO

Phius ZERO is Phius' zero energy standard. It is built upon CORE, utilizing the same focus on passive conservation measures first but sets the net source energy target at ZERO, does not allow for fossil-fueled combustion on site, and provides both on-site and off-site renewable energy options to get to ZERO.