PHI Certified Passive Windows

Germany updates PHI window certification rules with stricter EN ISO 10077-2:2023 simulations and PA66 anti-creep testing. See how exporters can avoid delays and stay EU market-ready.

U-value Passive House explained: learn what qualifies as compliant, how whole-window performance is measured, and how to compare glazing, frames, spacers, and certification data with confidence.

Window thermal performance low U value starts with the full system. Discover how glazing, warm-edge spacers, frames, and airtight installation cut heat loss and improve comfort.

Building envelope insulation choices should go beyond R-value. Learn how to compare air leakage, moisture control, and whole-assembly performance for smarter, lower-risk envelope decisions.