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PDFWAC 51-11R-40700

Section R407Certified passive house.

R407.1 General. Projects shall comply with Section R407.2 or R407.3.
R407.2 Passive 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.
R407.2.1 PHIUS documentation. Prior to the issuance of a building permit, the following items must be provided to the building 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 building official:
1. A PHIUS+ 2018 (or later) project certificate.
R407.3 Passive 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.
R407.3.1 PHI documentation. Prior to the issuance of a building permit, the following items must be provided to the building 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 building official:
1. A PHI Low Energy Building project certificate.
[Statutory Authority: RCW 19.27A.020, 19.27A.045, 19.27A.160 and chapter 19.27 RCW. WSR 20-01-047, § 51-11R-40700, filed 12/9/19, effective 7/1/20.]
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