About The PHIUS+ Standard

Passive building is taking off in the commercial sector
Calibrated to move buildings to Net Zero—affordably
A field guide for team members in the certification process
State of the art modeling software uses your local climate and weather data
A handy step-by-step guide to getting your project certified.
PHIUS+ is the only passive building certification system that requires third-party quality assurance/quality control.
PHIUS is here to support project teams during certification every step of the way. We've got your back.