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PDFWAC 51-11R-40620

Section R406.2Additional energy efficiency requirements.

R406.2 Additional energy efficiency requirements (Mandatory). Each dwelling unit in a residential building shall comply with sufficient options from Table R406.2 so as to achieve the following minimum number of credits:
Small Dwelling Unit:
1.5 credits
Dwelling units less than 1500 square feet in conditioned floor area with less than 300 square feet of fenestration area. Additions to existing building that are greater than 500 square feet of heated floor area but less than 1500 square feet.
Medium Dwelling Unit:
3.5 credits
All dwelling units that are not included in #1 or #3.
Exception: Dwelling units serving R-2 occupancies shall require 2.5 credits.
Large Dwelling Unit:
4.5 credits
Dwelling units exceeding 5000 square feet of conditioned floor area.
Exception: Dwelling units serving R-2 occupancies shall require 2.5 credits.
Additions less than 500 square feet:
0.5 credits
The drawings included with the building permit application shall identify which options have been selected and the point value of each option, regardless of whether separate mechanical, plumbing, electrical, or other permits are utilized for the project.
[Statutory Authority: RCW 19.27A.020, 19.27A.045, 19.27A.160, and 19.27.074. WSR 16-02-127, § 51-11R-40620, filed 1/6/16, effective 7/1/16. Statutory Authority: RCW 19.27A.020, 19.27A.045 and chapters 19.27 and 34.05 RCW. WSR 13-04-055, § 51-11R-40620, filed 2/1/13, effective 7/1/13.]
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