Phius and PHI certification support, from model to review comments.
Third-party certification is durability insurance: it catches the costly envelope defects a code inspector never will. We build and maintain the PHPP or WUFI-Passive model, coordinate the evidence behind every input, and carry the team cleanly through certifier review. Want the performance targets without the plaque? We'll hit those too.
The target is a certifiable building, not just a spreadsheet.
PHPP and WUFI-Passive
Envelope, windows, ventilation, loads, DHW, renewables, and project-specific assumptions are modeled against the selected certification pathway.
Evidence behind every input
Assemblies, product data, thermal-bridge values, ventilation assumptions, and commissioning evidence are organized so the review trail is legible.
Review-round support
We help answer certifier comments, revise the model, and keep design and construction teams aligned around the target.
Certified on both sides of the Passive House ecosystem.
BLDGTYP is certified through both Phius and PHI. That matters when a project has to choose between certification pathways, local code pathways, Mass Save incentives, or a performance target without the plaque.
Choosing a certification path?
Send the location, project type, unit count, and design phase. We'll help identify the practical route.
Ask about certification → info@buildingtype.com