Section 51-11R-40700 - Section R407-Certified passive houseR407.1General. Projects shall comply with Section R407.2 or R407.3.R407.2Passive House Institute U.S. (PHIUS). Projects shall comply with PHIUS+ 2018 Passive Building Standard, including its USDOE Energy Star and Zero Energy Ready Home co-requisites, and performance calculations by PHIUS-approved software. Projects shall also comply with the provisions of Table R405.2. R407.2.1PHIUS documentation. Prior to the issuance of a building permit, the following items must be provided to the code official: 1. A list of compliance features.2. A PHIUS precertification letter. Prior to the issuance of a certificate of occupancy, the following item must be provided to the code official:
1. A PHIUS+ 2018 (or later) project certificate. R407.3Passive House Institute (PHI). Projects shall comply with Low Energy Building Standard, version 9f or later, including performance calculations by PHI-approved software. Projects shall also comply with the provisions of Section R401 through R404. R407.3.1PHI documentation. Prior to the issuance of a building permit, the following items must be provided to the code official: 1. A list of compliance features.2. A statement from a passive house certifier that the modeled energy performance is congruent with the plans and specifications, and that the modeled performance meets said standard. Prior to the issuance of a certificate of occupancy, the following item must be provided to the code official:
1. A PHI Low Energy Building project certificate.Wash. Admin. Code § 51-11R-40700
Adopted by WSR 20-01-047, Filed 12/9/2019, effective 7/1/2020Amended by WSR 20-21-081, Filed 10/19/2020, effective 2/1/2021