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PDFWAC 51-11R-59000

Appendix RBOptional energy efficiency measuresTwo step.

Building owners may choose to use this appendix to achieve an additional 12 percent savings in building energy use. The number of additional energy efficiency credits required by Section R406.3 would be increased by the following amounts:
2.0 credit for each new single-family, two-family and townhouse dwelling unit.
1.0 credit for each new dwelling unit within an R-2 occupancy building.
1.0 credit for each addition smaller than 500 square feet to a single-family, two-family or townhouse dwelling unit.
1.5 credit for each addition of 500 square feet or larger to a single-family, two-family or townhouse dwelling unit.
Where Section R405, Simulated performance alternative, is used, the maximum allowable energy consumption shall be 84 percent of the value calculated according to Section R405.3.
[Statutory Authority: RCW 19.27A.045 and chapter 19.27A RCW. WSR 20-21-081, § 51-11R-59000, filed 10/19/20, effective 2/1/21. Statutory Authority: RCW 19.27A.020, 19.27A.045, 19.27A.160 and chapter 19.27 RCW. WSR 20-01-047, § 51-11R-59000, filed 12/9/19, effective 7/1/20.]
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