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PHIUS+ is Within Reach
WUFI Passive Design Tool
Office/Conference Center in CO
Healthcare Center in WA
Waste Mgm't Office Building in NS
YMCA Housing Retrofit in PA
5 PHIUS+ Principles
Benefits: Comfort, Cashflow...
PHIUS Works for All Buildings
The Business Case for PHIUS+
PHIUS Buildings That Work
6 Steps to Certification
Download the Design Guide
Can PHIUS scale to commercial?
Does it cost more?
Are PHIUS+ Buildings resilient?
Do tight buildings cause mold?
What are the risks?
Certifications: What's the difference?
How long does certification take?
More about HVAC, please
About The PHIUS+ Standard
PHIUS+ Is Within Reach
Passive building is taking off in the commercial sector
about PHIUS+ Is Within Reach
PHIUS+ Standard Overview
Calibrated to move buildings to Net Zero—affordably
about PHIUS+ Standard Overview
A Feasibility Study Can Lay a Base for PHIUS+ Certification
A snapshot of your design and how to get out of the ground
about A Feasibility Study Can Lay a Base for PHIUS+ Certification
PHIUS+ Certification Guidebook
A field guide for team members in the certification process
about PHIUS+ Certification Guidebook
WUFI® Passive Design Tool
State of the art modeling software uses your local climate and weather data
about WUFI® Passive Design Tool
PHIUS+ Certification Checklist
A handy step-by-step guide to getting your project certified.
about PHIUS+ Certification Checklist
Quality Assurance is Built In
PHIUS+ is the only passive building certification system that requires third-party quality assurance/quality control.
about Quality Assurance is Built In
PHIUS+ Certification Support
PHIUS is here to support project teams during certification every step of the way. We've got your back.
about PHIUS+ Certification Support