Product Certification Overview

Phius Certification is laser focused on passive building applications. Many existing standards are effective when it comes to evaluating products, but sometimes don’t go quite far enough for passive building. At times, other standards may not include specific data or categories for evaluation that passive building practitioners can leverage for their projects.

No. While Phius Certified Products offer helpful, vetted data, practitioners are free to use any products that fall within the criteria of Phius Building Certification programs in their projects.

The cost of certification varies between our programs. We encourage manufacturers to check the specific program pages to see quote tools, price lists, and other anticipated costs.

The Product Certification Team at Phius works continuously to expand its existing product certification programs and add new product categories to evaluate. Part of the expansion process involves careful planning and selection of certification criteria, so adding new categories does take some time. Please reach out to the Phius Product Certification Team via the Contact Us form if you have questions about plans for your specific product category.

No. Phius relies on accredited third-party laboratory reports to gather data for some product categories. Phius product certification methods consist of software simulations to evaluate products' performance. Some input data for these simulations is sourced from physical testing at accredited laboratories; for example, NFRC test reports for physical tests of fenestration products. Not all programs require products to have undergone physical testing. For full details, see the full certification protocol documents for each specific program.