Chapter 51-11 WAC
WASHINGTON STATE ENERGY CODE 2006 EDITION
Last Update: 2/23/09

WAC SECTIONS

51-11-0100 Chapter 1 -- Administration and enforcement.
51-11-0101 Section 101 -- Scope and general requirements.
51-11-0102 Materials and equipment.
51-11-0103 Alternate materials -- Method of construction, design or insulating systems.
51-11-0104 Plans and specifications.
51-11-0105 Inspections and enforcement.
51-11-0106 Violations.
51-11-0107 Liability.
51-11-0108 Conflicts with other codes.
51-11-0109 Severability.
51-11-0200 Chapter 2 -- Definitions.
51-11-0201 Scope.
51-11-0300 Chapter 3 -- Design conditions.
51-11-0301 Design criteria.
51-11-0302 Thermal design parameters.
51-11-0303 Mechanical ventilation.
51-11-0400 Chapter 4 -- Building design by systems analysis.
51-11-0401 Scope.
51-11-0402 Systems analysis.
51-11-0500 Chapter 5 -- Building design by component performance approach.
51-11-0501 Scope.
51-11-0502 Building envelope requirements.
51-11-0503 Building mechanical systems.
51-11-0504 Service water heating.
51-11-0505 Lighting.
51-11-0525 Equation 1 -- Group R Occupancy.
51-11-0526 Equation 2 -- All occupancies.
51-11-0527 Equation 3 -- Group R Occupancy.
51-11-0528 Equation 4 -- Reserved.
51-11-0529 Equation 5 -- Reserved.
51-11-0530 Table 5-1.
51-11-0531 Table 5-2 -- Reserved.
51-11-0532 Table 5-3 -- Reserved.
51-11-0533 Table 5-4 -- Reserved.
51-11-0534 Table 5-5 -- Reserved.
51-11-0535 Table 5-6 -- Reserved.
51-11-0536 Table 5-7 -- Reserved.
51-11-0537 Table 5-8 -- Reserved.
51-11-0538 Table 5-9 -- Reserved.
51-11-0539 Table 5-10 -- Reserved.
51-11-0540 Table 5-11.
51-11-0541 Table 5-12.
51-11-0542 Table 5-13 -- Reserved.
51-11-0600 Chapter 6 building design by prescriptive requirements approach.
51-11-0601 Scope.
51-11-0602 Building envelope requirements for Group R Occupancy.
51-11-0603 Building mechanical systems for Group R Occupancy.
51-11-0604 Reserved.
51-11-0605 Lighting.
51-11-0625 Table 6-1.
51-11-0700 Chapter 7 -- Standards.
51-11-0701 Scope.
51-11-0800 Section 0800 -- Suggested software for chapter 4 systems analysis approach for Group R Occupancy.
51-11-0900 Section 0900 -- Reserved.
51-11-1000 Chapter 10.
51-11-1001 Section 1001 General.
51-11-1002 Section 1002: Below grade walls and slabs.
51-11-1003 Section 1003: On-grade slab floors.
51-11-1004 Section 1004: Floors over unconditioned space.
51-11-1005 Section 1005: Above-grade walls.
51-11-1006 Section 1006 Default U-factors for glazing and doors.
51-11-1007 Section 1007 Ceilings.
51-11-1008 Section 1008 Air infiltration.
51-11-1009 Section 1009 Mass.
CHAPTER 11

ADMINISTRATION AND ENFORCEMENT
51-11-1100 Title.
51-11-1110 Purpose and intent.
51-11-1120 Scope.
51-11-1130 Application to existing buildings.
51-11-1131 Additions to existing buildings.
51-11-1132 Alterations and repairs.
51-11-1133 Change of occupancy or use.
51-11-1134 Historic buildings.
51-11-1140 Enforcement.
51-11-1141 Plans and specifications.
51-11-1142 Materials and equipment.
51-11-1143 Inspections.
51-11-1144 Violations.
51-11-1150 Conflicts with other codes.
51-11-1160 Severability and liability.
CHAPTER 12

DEFINITIONS



Note: For nonresidential definitions, see chapter 2.
CHAPTER 13

BUILDING ENVELOPE
51-11-1301 Scope.
51-11-1302 Space heat type.
51-11-1303 Climate zones.
51-11-1310 General requirements.
51-11-1311 Insulation.
51-11-1312 Glazing and doors.
51-11-1313 Moisture control.
51-11-1314 Air leakage.
51-11-1320 Prescriptive building envelope option.
51-11-1321 General.
51-11-1322 Opaque envelope.
51-11-1323 Glazing.
51-11-1330 Component performance building envelope option.
51-11-1331 General.
51-11-1332 Component U-factors.
51-11-1333 UA calculations.
51-11-1334 Solar heat gain coefficient rate calculations.
CHAPTER 14

BUILDING MECHANICAL SYSTEMS
51-11-1401 Scope.
51-11-1402 Mechanical ventilation.
51-11-1410 General requirements.
51-11-1411 HVAC equipment performance requirements.
51-11-1412 Controls.
51-11-1413 Economizers.
51-11-1414 Ducting systems.
51-11-1415 Piping systems.
51-11-1416 Mechanical systems commissioning and completion requirements.
51-11-1420 Simple systems (packaged unitary equipment).
51-11-1421 System type.
51-11-1422 Controls.
51-11-1423 Economizers.
51-11-1424 Separate air distribution systems.
51-11-1430 Complex systems.
51-11-1431 System type.
51-11-1432 Controls.
51-11-1433 Economizers.
51-11-1434 Separate air distribution systems.
51-11-1435 Simultaneous heating and cooling.
51-11-1436 Heat recovery.
51-11-1437 Electric motor efficiency.
51-11-1438 Variable flow systems and system criteria.
51-11-1439 Exhaust hoods.
51-11-1440 Service water heating.
51-11-1441 Water heater installation.
51-11-1442 Shut-off controls.
51-11-1443 Pipe insulation.
51-11-1450 Heated pools.
51-11-1451 General.
51-11-1452 Pool water heaters.
51-11-1453 Controls.
51-11-1454 Pool covers.
CHAPTER 15

LIGHTING, MOTORS AND TRANSFORMERS
51-11-1501 Scope.
51-11-1510 General requirements.
51-11-1511 Electric motors.
51-11-1512 Exempt lighting.
51-11-1513 Lighting controls.
51-11-1514 Exit signs.
51-11-1520 Prescriptive lighting option.
51-11-1521 Prescriptive interior lighting requirements.
51-11-1522 Prescriptive exterior lighting requirements.
51-11-1530 Lighting power allowance option.
51-11-1531 Interior lighting power allowance.
51-11-1532 Exterior lighting power allowance.
CHAPTER 16

RESERVED
CHAPTER 17

STANDARDS



Note: For nonresidential standards, see chapter 7.
CHAPTER 18

RESERVED
CHAPTER 19

RESERVED
CHAPTER 20

DEFAULT HEAT-LOSS COEFFICIENTS



Note: For nonresidential defaults, see chapter 10.
REFERENCE STANDARD 29: NONRESIDENTIAL

BUILDING DESIGN BY SYSTEMS ANALYSIS
51-11-99901 Section 1 -- Scope.
51-11-99902 Section 2 -- General principles and requirements.
51-11-99903 Section 3 -- Specific modeling assumptions.
51-11-99904 Section 4 -- Suggested software for systems analysis approach.
DISPOSITIONS OF SECTIONS FORMERLY CODIFIED IN THIS CHAPTER
51-11-0606 Reserved. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-0606, filed 10/18/93, effective 4/1/94. Statutory Authority: RCW 19.27A.020 and 1990 c 2. 91-01-112, § 51-11-0606, filed 12/19/90, effective 7/1/91.]  Repealed by 98-03-003, filed 1/8/98, effective 7/1/98.  Statutory Authority: RCW 19.27A.025 and 19.27A.045.
51-11-0607 Reserved. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-0607, filed 10/18/93, effective 4/1/94. Statutory Authority: RCW 19.27A.020 and 1990 c 2. 91-01-112, § 51-11-0607, filed 12/19/90, effective 7/1/91.]  Repealed by 98-03-003, filed 1/8/98, effective 7/1/98.  Statutory Authority: RCW 19.27A.025 and 19.27A.045.
51-11-0608 Reserved. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-0608, filed 10/18/93, effective 4/1/94. Statutory Authority: Chapter 19.27A RCW. 92-01-140, § 51-11-0608, filed 12/19/91, effective 7/1/92. Statutory Authority: RCW 19.27A.020 and 1990 c 2. 91-01-112, § 51-11-0608, filed 12/19/90, effective 7/1/91.]  Repealed by 98-03-003, filed 1/8/98, effective 7/1/98.  Statutory Authority: RCW 19.27A.025 and 19.27A.045.
51-11-0626 Table 6-2 -- Reserved. [Statutory Authority: RCW 19.27A.025, 19.27A.045. 02-01-112, § 51-11-0626, filed 12/18/01, effective 7/1/02; 01-03-010, § 51-11-0626, filed 1/5/01, effective 7/1/01; 98-03-003, § 51-11-0626, filed 1/8/98, effective 7/1/98. Statutory Authority: Chapters 19.27 and 19.27A RCW and 1994 c 226. 95-01-126, § 51-11-0626, filed 12/21/94, effective 6/30/95. Statutory Authority: Chapters 19.27, 19.27A and 34.05 RCW. 94-05-059, § 51-11-0626, filed 2/10/94, effective 4/1/94. Statutory Authority: Chapter 19.27A RCW. 92-01-140, § 51-11-0626, filed 12/19/91, effective 7/1/92.]  Repealed by 07-01-089, filed 12/19/06, effective 7/1/07. Statutory Authority: RCW 19.27A.022, 19.27A.025, 19.27A.045, and chapters 19.27 and 34.05 RCW. 
51-11-0627 Table 6-3 -- Reserved. [Statutory Authority: RCW 19.27A.025, 19.27A.045. 02-01-112, § 51-11-0627, filed 12/18/01, effective 7/1/02; 01-03-010, § 51-11-0627, filed 1/5/01, effective 7/1/01; 98-03-003, § 51-11-0627, filed 1/8/98, effective 7/1/98. Statutory Authority: Chapters 19.27 and 19.27A RCW and 1994 c 226. 95-01-126, § 51-11-0627, filed 12/21/94, effective 6/30/95. Statutory Authority: Chapters 19.27, 19.27A and 34.05 RCW. 94-05-059, § 51-11-0627, filed 2/10/94, effective 4/1/94. Statutory Authority: Chapter 19.27A RCW. 92-01-140, § 51-11-0627, filed 12/19/91, effective 7/1/92.]  Repealed by 07-01-089, filed 12/19/06, effective 7/1/07. Statutory Authority: RCW 19.27A.022, 19.27A.025, 19.27A.045, and chapters 19.27 and 34.05 RCW. 
51-11-0628 Table 6-4 -- Reserved. [Statutory Authority: RCW 19.27A.025, 19.27A.045. 02-01-112, § 51-11-0628, filed 12/18/01, effective 7/1/02; 01-03-010, § 51-11-0628, filed 1/5/01, effective 7/1/01; 98-03-003, § 51-11-0628, filed 1/8/98, effective 7/1/98. Statutory Authority: Chapters 19.27 and 19.27A RCW and 1994 c 226. 95-01-126, § 51-11-0628, filed 12/21/94, effective 6/30/95. Statutory Authority: Chapters 19.27, 19.27A and 34.05 RCW. 94-05-059, § 51-11-0628, filed 2/10/94, effective 4/1/94. Statutory Authority: Chapter 19.27A RCW. 92-01-140, § 51-11-0628, filed 12/19/91, effective 7/1/92.]  Repealed by 07-01-089, filed 12/19/06, effective 7/1/07. Statutory Authority: RCW 19.27A.022, 19.27A.025, 19.27A.045, and chapters 19.27 and 34.05 RCW. 
51-11-0629 Table 6-5 -- Reserved. [Statutory Authority: RCW 19.27A.025, 19.27A.045. 02-01-112, § 51-11-0629, filed 12/18/01, effective 7/1/02; 98-03-003, § 51-11-0629, filed 1/8/98, effective 7/1/98. Statutory Authority: Chapters 19.27 and 19.27A RCW and 1994 c 226. 95-01-126, § 51-11-0629, filed 12/21/94, effective 6/30/95. Statutory Authority: Chapters 19.27, 19.27A and 34.05 RCW. 94-05-059, § 51-11-0629, filed 2/10/94, effective 4/1/94. Statutory Authority: Chapter 19.27A RCW. 92-01-140, § 51-11-0629, filed 12/19/91, effective 7/1/92.]  Repealed by 07-01-089, filed 12/19/06, effective 7/1/07. Statutory Authority: RCW 19.27A.022, 19.27A.025, 19.27A.045, and chapters 19.27 and 34.05 RCW. 
51-11-0630 Table 6-6 -- Reserved. [Statutory Authority: RCW 19.27A.025, 19.27A.045. 02-01-112, § 51-11-0630, filed 12/18/01, effective 7/1/02; 01-03-010, § 51-11-0630, filed 1/5/01, effective 7/1/01; 98-03-003, § 51-11-0630, filed 1/8/98, effective 7/1/98. Statutory Authority: Chapters 19.27 and 19.27A RCW and 1994 c 226. 95-01-126, § 51-11-0630, filed 12/21/94, effective 6/30/95. Statutory Authority: Chapters 19.27, 19.27A and 34.05 RCW. 94-05-059, § 51-11-0630, filed 2/10/94, effective 4/1/94. Statutory Authority: Chapter 19.27A RCW. 92-01-140, § 51-11-0630, filed 12/19/91, effective 7/1/92.]  Repealed by 07-01-089, filed 12/19/06, effective 7/1/07. Statutory Authority: RCW 19.27A.022, 19.27A.025, 19.27A.045, and chapters 19.27 and 34.05 RCW. 
51-11-0631 Table 6-7 -- Reserved. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-0631, filed 10/18/93, effective 4/1/94. Statutory Authority: Chapter 19.27A RCW. 92-01-140, § 51-11-0631, filed 12/19/91, effective 7/1/92.]  Repealed by 07-01-089, filed 12/19/06, effective 7/1/07. Statutory Authority: RCW 19.27A.022, 19.27A.025, 19.27A.045, and chapters 19.27 and 34.05 RCW. 
51-11-1010 Section 1009 Mass. [Statutory Authority: RCW 19.27A.020 and 1990 c 2. 91-01-112, § 51-11-1010, filed 12/19/90, effective 7/1/91.]  Repealed by 98-03-003, filed 1/8/98, effective 7/1/98.  Statutory Authority: RCW 19.27A.025 and 19.27A.045.
51-11-1201 Scope. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-1201, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-1210 Application of terms. [Statutory Authority: RCW 19.27A.025 and 19.27A.045. 98-03-003, § 51-11-1210, filed 1/8/98, effective 7/1/98. Statutory Authority: RCW 19.27.074, 19.27A.020 and 19.27A.025. 97-03-017, § 51-11-1210, filed 1/7/97, effective 7/1/97. Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-1210, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-1701 Scope. [Statutory Authority: RCW 19.27A.025 and 19.27A.045. 98-03-003, § 51-11-1701, filed 1/8/98, effective 7/1/98. Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-1701, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-2000 Default heat-loss coefficients. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-2000, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-2001 General. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-2001, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-2002 Below grade walls and slabs. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-2002, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-2003 On-grade slab floors. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-2003, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-2004 Floors over unconditioned space. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-2004, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-2005 Above grade walls. [Statutory Authority: RCW 19.27A.025 and 19.27A.045. 98-03-003, § 51-11-2005, filed 1/8/98, effective 7/1/98. Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-2005, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-2006 Default U-factors for glazing and doors. [Statutory Authority: RCW 19.27A.025 and 19.27A.045. 98-03-003, § 51-11-2006, filed 1/8/98, effective 7/1/98. Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-2006, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-2007 Ceilings. [Statutory Authority: RCW 19.27A.025 and 19.27A.045. 98-03-003, § 51-11-2007, filed 1/8/98, effective 7/1/98. Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-2007, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-2008 Reserved. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-2008, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045. 
51-11-2009 Mass. [Statutory Authority: RCW 19.27A.025. 93-21-052, § 51-11-2009, filed 10/18/93, effective 4/1/94.]  Repealed by 01-03-010, filed 1/5/01, effective 7/1/01. Statutory Authority: RCW 19.27A.025, 19.27A.045.