780 CMR, ch. 51, ch. 4, R405, R405.2

Current through Register 1538, January 3, 2025
Subsection R405.2 - Phius Documentation

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.

780 CMR, ch. 51, ch. 4, R405, R405.2

Amended by Mass Register Issue 1532, eff. 10/11/2024.