About The PHIUS+ Standard

PHIUS+ Is Within Reach

Passive building is taking off in the commercial sector

PHIUS+ Standard Overview

Calibrated to move buildings to Net Zero—affordably

A Feasibility Study Can Lay a Base for PHIUS+ Certification

A snapshot of your design and how to get out of the ground

PHIUS+ Certification Guidebook

A field guide for team members in the certification process

WUFI® Passive Design Tool

State of the art modeling software uses your local climate and weather data

PHIUS+ Certification Process Checklist

A handy step-by-step guide to getting your project certified.

Quality Assurance is Built In

PHIUS+ is the only passive building certification system that requires third-party quality assurance/quality control.

PHIUS+ Certification Support

PHIUS is here to support project teams during certification every step of the way. We've got your back.