"Yellow Flag" Items

Please contact us early for more information if the project entails any of these items: 

• Retrofit projects with foundation thermal bridges. 
• Non-residential projects with “process loads” or unusual heating/cooling set point temperatures. 
• Site altitude very different from the nearest climate dataset location. 
• Thermal bridge calculations: contact [e-mail] for assistance, or refer to PHIUS’ THERM Training Package. 
• No PHIUS+ Rater/Verifier within 100 miles of the project location.

Please study the referenced information soon, if the project entails any of these items: 

• Spray foam, flash-and-fill assemblies. 
• Floors with air-permeable insulation. 
• Thermal mass, or anything more than “light construction”. 
• Heat pumps of any kind: Download the Heat Pump COP Protocol Kit.

© 2021 Passive House Alliance. All Rights Reserved.