Code of Massachusetts Regulations
780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS
Chapter CHAPTER 51 - MASSACHUSETTS RESIDENTIAL CODE
Chapter 4 - [RE] RESIDENTIAL ENERGY EFFICIENCY
Section R405 - Passivehouse Building Certification Option.
Subsection R405.2 - Phius Documentation

Current through Register 1543, March 14, 2025

When using WUFI Passive or other Phius approved software:

1. Prior to the issuance of a building permit, the following items must be provided to the Building Official:

a. A Phius 2021 (or newer) Verification Report which demonstrates project compliance with Phius 2021 (or newer) performance requirements.

b. A statement from the CPHC that the verification report results accurately reflect the plans submitted.

c. Evidence of project registration from Phius.

OR

a. A Design Certification Letter from Phius.

2. Prior to the issuance of a certificate of occupancy, the following items must be provided to the building official:

a. Design Certification Letter from Phius.

b. An updated Verification Report by the CPHC which reflects "as-built" conditions and test results that demonstrate project compliance with Phius (blower door and ventilation results).

c. A statement from the CPHC that the envelope meets the Phius hygrothermal requirements found in Appendix B of the Phius 2021 Certification guidebook

d. A statement from the Phius Certified Verifier or Rater that the project test results and other Phius verification requirements are met.

e. A copy of the Phius workbook listing all testing results and as-built conditions.

OR

a. A Project Certificate demonstrating final certification awarded by Phius.

AND

f. A statement from the Phius Verifier or Rater of compliance with R404.4: EV ready, and Appendix RB: Solar Ready Provisions.

Disclaimer: These regulations may not be the most recent version. Massachusetts may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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