Resource Library

This calculator should be used to determine the 'Mechanical Room' temperature when a mechanical ventilation device is located outside of the thermal envelope. (eg. the roof)

Phius Associate Director Lisa White and Phius Project Certification Manager James Ortega highlight some key changes in the new version of WUFI Passive.

Phius' Michael Franco and James Ortega offer a refresher on the usage of windows and doors on Phius projects.

This webinar takes attendees on a high-octane trip through the entire WUFI model and review process.

The Phius Certification Guidebook is the one-stop-shop for all things related to the Phius project certification program.

The webinar will detail the usage of the Phius Multifamily calculator, so you can accurately account for your internal heat gains, lighting and plug loads. The updated calculator is refined with updated formulas, built-in definitions and guidance, and a new, fresh look.

Use for any project with more than one dwelling unit. This includes townhomes, duplexes, traditional multifamily, dormitories, long stay hotels etc... following the same protocol as the Multifamily Lighting and Miscellaneous Electric Loads (MEL) document.

This webinar reviews a method for step-by-step modeling the seasonal shading factor from deciduous trees in WUFI Passive. Shading from deciduous trees can have a significant impact on Phius heating and cooling metrics.