STATE BUILDING CODE ADOPTION AND AMENDMENT OF THE 2018 EDITION OF THE INTERNATIONAL ENERGY CONSERVATION CODE, COMMERCIAL
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WAC Sections |
51-11C-10000 | Chapter 1 CE—Scope and administration. |
51-11C-10100 | Section C101—Scope and general requirements. |
51-11C-10140 | Section C101.4—Applicability. |
51-11C-10143 | Reserved. |
51-11C-10150 | Section C101.5—Compliance. |
51-11C-10200 | Section C102—Alternative materials, design and methods of construction and equipment. |
51-11C-10300 | Section C103—Construction documents. |
51-11C-10400 | Section C104—Inspections. |
51-11C-10500 | Section C105—Validity. |
51-11C-10600 | Section C106—Referenced standards. |
51-11C-10700 | Section C107—Fees. |
51-11C-10800 | Section C108—Stop work order. |
51-11C-10900 | Section C109—Board of appeals. |
51-11C-11000 | Section C110—Violations. |
51-11C-11100 | Section C111—Liability. |
51-11C-20000 | Chapter 2 CE—Definitions. |
51-11C-20100 | Section C201—General. |
51-11C-20200 | Section C202—General definitions. |
51-11C-20201 | Section C202.1—A. |
51-11C-20202 | Section C202.2—B. |
51-11C-20203 | Section C202.3—C. |
51-11C-20204 | Section C202.4—D. |
51-11C-20205 | Section C202.5—E. |
51-11C-20206 | Section C202.6—F. |
51-11C-20207 | Section C202.7—G. |
51-11C-20208 | Section C202.8—H. |
51-11C-20209 | Section C202.9—I. |
51-11C-20210 | Section C202.10—J. |
51-11C-20211 | Section C202.11—K. |
51-11C-20212 | Section C202.12—L. |
51-11C-20213 | Section C202.13—M. |
51-11C-20214 | Section C202.14—N. |
51-11C-20215 | Section C202.15—O. |
51-11C-20216 | Section C202.16—P. |
51-11C-20217 | Section C202.17—Q. |
51-11C-20218 | Section C202.18—R. |
51-11C-20219 | Section C202.19—S. |
51-11C-20220 | Section C202.20—T. |
51-11C-20221 | Section C202.21—U. |
51-11C-20222 | Section C202.22—V. |
51-11C-20223 | Section C202.23—W. |
51-11C-20224 | Section C202.24—X, Y, Z. |
51-11C-30000 | Chapter 3 CE—General requirements. |
51-11C-30100 | Section C301—Climate zones. |
51-11C-30200 | Section C302—Design conditions. |
51-11C-30300 | Section C303—Materials, systems and equipment. |
51-11C-30310 | Section 303.1—Identification. |
51-11C-303131 | Table C303.1.3(1)—Default glazed window, glass door and skylight U-factors. |
51-11C-303132 | Table C303.1.3(2)—Default door U-factors. |
51-11C-303133 | Table C303.1.3(3)—Default glazed fenestration SHGC and VT. |
51-11C-303134 | Table C303.1.3(4)—Default U-factors for skylights. |
51-11C-303135 | Table C303.1.3(5)—Small business compliance default table. |
51-11C-30315 | Table C303.1.5—U-factors for spandrel panels and glass curtain walls. |
51-11C-30320 | Section C303.2—Installation. |
51-11C-30330 | Reserved. |
51-11C-40000 | Chapter 4 CE—Commercial energy efficiency. |
51-11C-40100 | Section C401—General. |
51-11C-40200 | Section C402—Building envelope requirements. |
51-11C-40210 | Section C402.1—General (Prescriptive). |
51-11C-40211 | Section C402.1.1—Low energy buildings. |
51-11C-40212 | Section C402.1.2—Equipment buildings. |
51-11C-402121 | Table C402.1.3—Opaque thermal envelope assembly R-value requirements. |
51-11C-40213 | Section C402.1.3—Insulation component R-value method. |
51-11C-402131 | Reserved. |
51-11C-402132 | Reserved. |
51-11C-402133 | Reserved. |
51-11C-402134 | Reserved. |
51-11C-40214 | Section C402.1.4—Assembly U-factor, C-factor, or F-factor-based method. |
51-11C-402141 | Table C402.1.4—Opaque thermal envelope requirements, U-factor method. |
51-11C-402142 | Table C402.1.4.1—Effective R-values for steel stud wall assemblies. |
51-11C-40215 | Section C402.1.5—Component performance alternative. |
51-11C-40220 | Section C402.2—Specific insulation requirements. |
51-11C-402200 | Reserved. |
51-11C-40221 | Section C402.2.1—Roof assembly. |
51-11C-402211 | Skylight curbs. |
51-11C-40222 | Reserved. |
51-11C-40223 | Section C402.2.3—Above-grade walls. |
51-11C-40224 | Section C402.2.4—Below-grade walls. |
51-11C-40225 | Section C402.2.5—Floors. |
51-11C-40226 | Section C402.2.6—Slab-on-grade perimeter insulation. |
51-11C-40227 | Airspaces. |
51-11C-40228 | Section C402.2.8—Insulation of radiant heating systems. |
51-11C-40230 | Section C402.4—Fenestration. |
51-11C-402300 | Table C402.4—Building envelope requirements—Fenestration. |
51-11C-40231 | Section C402.4.1—Maximum area. |
51-11C-40232 | Section C402.4.2—Minimum skylight fenestration area. |
51-11C-40233 | Section C402.4.3—Maximum U-factor and SHGC. |
51-11C-40234 | Section C402.4.4—Doors. |
51-11C-40240 | Section C402.5—Air leakage-thermal envelope. |
51-11C-40241 | Section C402.5.1—Air barriers. |
51-11C-40242 | Reserved. |
51-11C-40243 | Section C402.5.3—Rooms containing fuel-burning appliances. |
51-11C-40244 | Section C402.5.4—Doors and access openings. |
51-11C-40245 | Section C402.5.5—Air intakes, exhaust openings, stairways and shafts. |
51-11C-40246 | Section C402.5.6—Loading dock weatherseals. |
51-11C-40247 | Section C402.5.7—Vestibules. |
51-11C-40248 | Section C402.5.8—Recessed lighting. |
51-11C-40250 | Reserved. |
51-11C-40260 | Reserved. |
51-11C-40300 | Section C403—Mechanical systems. |
51-11C-40310 | Section C403.1—General. |
51-11C-40320 | Section C403.2—System design. |
51-11C-40321 | Section C403.2.1—Zone isolation. |
51-11C-40322 | Section C403.2.2—Ventilation and exhaust. |
51-11C-40323 | Section C403.2.3—Variable flow capacity. |
51-11C-403231 | Table C403.3.2(1)—Minimum efficiency requirements—Electrically operated unitary air conditioners and condensing units. |
51-11C-403232 | Table C403.3.2(2)—Minimum efficiency requirements—Electrically operated unitary and applied heat pumps. |
51-11C-403233 | Table C403.3.2(3)—Minimum efficiency requirements—Electrically operated PTAC, PTHP, SPVAC, SPVHP, room air conditioners. |
51-11C-403234 | Table C403.3.2(4)—Minimum efficiency requirements—Warm air furnaces and unit heaters. |
51-11C-403235 | Table C403.3.2(5)—Minimum efficiency requirements—Gas- and oil-fired boilers. |
51-11C-403236 | Table C403.3.2(6)—Reserved. |
51-11C-403237 | Table C403.3.2(7)—Minimum efficiency requirements—Water chilling packages. |
51-11C-403238 | Table C403.3.2(8)—Minimum efficiency requirements—Heat rejection equipment. |
51-11C-403239 | Table C403.3.2(9) and Table C403.3.2(10)—Minimum efficiency requirements. |
51-11C-40324 | Reserved. |
51-11C-403241 | Reserved. |
51-11C-403242 | Reserved. |
51-11C-403243 | Reserved. |
51-11C-403244 | Reserved. |
51-11C-403245 | Reserved. |
51-11C-403246 | Reserved. |
51-11C-403247 | Reserved. |
51-11C-403248 | Reserved. |
51-11C-403249 | Reserved. |
51-11C-40325 | Reserved. |
51-11C-403251 | Reserved. |
51-11C-403252 | Reserved. |
51-11C-403253 | Reserved. |
51-11C-403254 | Reserved. |
51-11C-40326 | Reserved. |
51-11C-403261 | Reserved. |
51-11C-40327 | Reserved. |
51-11C-40328 | Reserved. |
51-11C-403281 | Reserved. |
51-11C-40329 | Reserved. |
51-11C-403291 | Reserved. |
51-11C-403292 | Reserved. |
51-11C-403293 | Reserved. |
51-11C-403294 | Reserved. |
51-11C-403295 | Reserved. |
51-11C-40330 | Section C403.3—Equipment selection. |
51-11C-40331 | Section C403.3.1—Equipment and system sizing. |
51-11C-40332 | Section C403.3.2—HVAC equipment performance requirements. |
51-11C-40333 | Section C403.3.3—Hot gas bypass. |
51-11C-40334 | Section C403.3.4—Boiler turndown. |
51-11C-40335 | Section C403.3.5—Dedicated outdoor air systems. |
51-11C-40336 | Section C403.3.6—Ventilation for Group R-2 occupancy. |
51-11C-40340 | Section C403.4—HVAC system controls. |
51-11C-40341 | Section C403.4.1—Thermostatic controls. |
51-11C-40342 | Section C403.4.2—Off-hour controls. |
51-11C-40343 | Section C403.4.3—Hydronic systems controls. |
51-11C-403431 | Reserved. |
51-11C-40344 | Section C403.4.4—Part load controls. |
51-11C-40345 | Section C403.4.5—Pump isolation. |
51-11C-40346 | Section C403.4.6—Variable flow controls. |
51-11C-40347 | Section C403.4.7—Combustion heating equipment controls. |
51-11C-40348 | Sections C403.4.8 through C403.4.10—Group R requirements. |
51-11C-40349 | Section C403.4.11—DDC systems. |
51-11C-40350 | Section C403.5—Economizers. |
51-11C-40351 | Section C403.5.1—Integrated economizer control. |
51-11C-40352 | Section C403.5.2—Economizer heating system impact. |
51-11C-40353 | Section C403.5.3—Air economizers. |
51-11C-40354 | Section C403.5.4—Waterside economizers. |
51-11C-40355 | Section C403.5.5—Economizer fault detection and diagnostics. |
51-11C-40360 | Section C403.6—Requirements for mechanical systems serving multiple zones. |
51-11C-403610 | Section C403.6.10—High efficiency VAV systems. |
51-11C-4037 | Section C403.7—Ventilation and exhaust systems. |
51-11C-40371 | Section C403.7.1—Demand control ventilation. |
51-11C-40372 | Section C403.7.2—Occupancy sensors. |
51-11C-40373 | Section C403.7.3—Ventilation air heating control. |
51-11C-40374 | Section C403.7.4—HVAC serving guestrooms. |
51-11C-40375 | Section C403.7.5—Loading dock and parking garage ventilation system controls. |
51-11C-40376 | Section C403.7.6—Energy recovery ventilation systems. |
51-11C-40377 | Section C403.7.7—Exhaust systems. |
51-11C-40378 | Section C403.7.8—Shutoff dampers. |
51-11C-4038 | Section C403.8—Fan and fan controls. |
51-11C-4039 | Section C403.9—Heat rejection and heat recovery equipment. |
51-11C-40391 | Section C403.10—Construction of HVAC system elements. |
51-11C-40392 | Section C403.11—Mechanical systems outside the building envelope. |
51-11C-40393 | Section C403.12—High efficiency single zone VAV systems. |
51-11C-40400 | Section C404—Service water heating and pressure-booster systems. |
51-11C-40401 | Section C404.1—General. |
51-11C-40402 | Section C404.2—Service water-heating equipment performance efficiency. |
51-11C-404021 | Table C404.2—Minimum performance of water-heating equipment. |
51-11C-40403 | Section C404.3—Efficient heated water supply piping. |
51-11C-40404 | Section C404.4—Heat traps. |
51-11C-40405 | Section C404.5—Water heater installation. |
51-11C-40406 | Section C404.6—Pipe insulation. |
51-11C-40407 | Section C404.7—Heated-water circulating and temperature maintenance systems. |
51-11C-40408 | Section C404.8—Demand recirculation controls. |
51-11C-40409 | Section C404.9—Domestic hot water meters. |
51-11C-404091 | Section C404.10—Drain water heat recovery units. |
51-11C-40410 | Section C404.11—Pools and spas. |
51-11C-40413 | Section C404.13—Service water pressure-booster systems. |
51-11C-40500 | Section C405—Electrical power and lighting systems. |
51-11C-40501 | Section C405.1—General. |
51-11C-40502 | Section C405.2—Electrical power and lighting systems. |
51-11C-405021 | Section C405.2.1—Occupant sensor controls. |
51-11C-405022 | Section C405.2.2—Time switch controls. |
51-11C-405023 | Section C405.2.3—Manual controls. |
51-11C-405024 | Section C405.2.4—Daylight responsive controls. |
51-11C-405025 | Section C405.2.5—Additional lighting controls. |
51-11C-405026 | Section C405.2.6—Exterior lighting controls. |
51-11C-405027 | Reserved. |
51-11C-405028 | Section C405.2.8—Area controls. |
51-11C-40503 | Reserved. |
51-11C-40504 | Reserved. |
51-11C-40505 | Section C405.4—Interior lighting power requirements. |
51-11C-405051 | Section C405.4.1—Total connected interior lighting power. |
51-11C-405052 | Section C405.4.2—Interior lighting power requirements. |
51-11C-405053 | Table C405.4.2(1)—Interior lighting power allowances—Building area method. |
51-11C-405054 | Table C405.4.2(2)—Interior lighting power allowances—Space-by-space method. |
51-11C-40506 | Section C405.5—Exterior lighting. |
51-11C-405061 | Section C405.5.1—Exterior building grounds lighting. |
51-11C-405062 | Section C405.5.2—Exterior building lighting power. |
51-11C-405063 | Table C405.5.3(1)—Exterior lighting zones. |
51-11C-405064 | Table C405.5.3(2)—Individual lighting power allowances for building exteriors. |
51-11C-40507 | Section C405.6—Electrical energy consumption. |
51-11C-40508 | Section C405.8—Electric motors. |
51-11C-40509 | Section C405.9—Vertical and horizontal transportation systems. |
51-11C-40510 | Section C405.10—Controlled receptacles. |
51-11C-40511 | Section C405.11—Voltage drop in feeders and branch circuits. |
51-11C-40512 | Section C405.12—Electrical commissioning. |
51-11C-40513 | Reserved. |
51-11C-40600 | Section C406—Efficiency packages. |
51-11C-40602 | Section C406.2—HVAC option. |
51-11C-40603 | Section C406.3—LPA option. |
51-11C-40604 | Section C406.4—Lighting controls option. |
51-11C-40605 | Section C406.5—On-site renewable energy option. |
51-11C-40606 | Section C406.6—DOAS option. |
51-11C-40607 | Section C406.7—High performance dedicated outdoor air system option. |
51-11C-40608 | Section C406.8—Service water heating option. |
51-11C-40609 | Section C406.9—High performance service water heating in multifamily option. |
51-11C-40610 | Section C406.10—Envelope option. |
51-11C-40611 | Section C406.11—Air infiltration option. |
51-11C-40612 | Section C406.12—Commercial kitchen option. |
51-11C-40700 | Section C407—Total building performance. |
51-11C-40701 | Section C407.1—Scope. |
51-11C-40702 | Section C407.2—Mandatory requirements. |
51-11C-40703 | Section C407.3—Performance-based compliance. |
51-11C-40704 | Section C407.4—Reserved. |
51-11C-40705 | Section C407.5—Reserved. |
51-11C-407051 | Tables for Section C407.5—Carbon emissions factors and building performance factors. |
51-11C-407052 | Reserved. |
51-11C-407053 | Reserved. |
51-11C-407054 | Reserved. |
51-11C-407055 | Reserved. |
51-11C-40706 | Section C407.6—Reserved. |
51-11C-40800 | Section C408—System commissioning. |
51-11C-40801 | Section C408.1—General. |
51-11C-408012 | Figure C408.1.4.1—Commissioning compliance checklist. |
51-11C-40802 | Section C408.2—Mechanical systems commissioning. |
51-11C-40803 | Section C408.3—Service water heating systems commissioning. |
51-11C-40804 | Section C408.4—Controlled receptacle and lighting control system commissioning. |
51-11C-408045 | Section C408.5—Other systems commissioning. |
51-11C-40805 | Section C408.6—Metering system commissioning. |
51-11C-40807 | Section C408.7—Refrigeration system commissioning. |
51-11C-40900 | Section C409—Energy metering and energy consumption management. |
51-11C-40901 | Section C409.1—General. |
51-11C-40902 | Section C409.2—Energy source metering. |
51-11C-40903 | Section C409.3—End-use metering. |
51-11C-40904 | Section C409.4—Measurement devices, data acquisition system and energy display. |
51-11C-40905 | Section C409.5—Metering for existing buildings. |
51-11C-41000 | Section C410—Refrigeration system requirements. |
51-11C-41100 | Section C411—Solar readiness. |
51-11C-50000 | Chapter 5 [CE]—Existing buildings. |
51-11C-50200 | Section C502—Additions. |
51-11C-50300 | Section C503—Alterations. |
51-11C-50400 | Section C504—Repairs. |
51-11C-50500 | Section C505—Change of occupancy or use. |
51-11C-60000 | Appendix A—Default heat loss coefficients. |
51-11C-600000 | Chapter 6 [CE]—Referenced standards. |
51-11C-61010 | Section A101—General. |
51-11C-61011 | Section A101.1—Scope. |
51-11C-61012 | Section A101.2—Description. |
51-11C-61013 | Section A101.3—Air films. |
51-11C-61014 | Section A101.4—Compression of insulation. |
51-11C-61015 | Section A101.5—Building materials. |
51-11C-61020 | Section A102—Ceilings. |
51-11C-61021 | Section A102.1—General. |
51-11C-610211 | Table A102.1—Default U-factors for ceilings. |
51-11C-61022 | Section A102.2—Component description. |
51-11C-610221 | Tables A102.2.4—Steel truss framed ceiling Uo values. |
51-11C-610225 | Tables A102.2.5—Default U-factors for metal building roofs. |
51-11C-610226 | Tables A102.2.6—Assembly U-factors for roofs with insulation entirely above deck. |
51-11C-61030 | Section A103—Above grade walls. |
51-11C-61031 | Section A103.1—General. |
51-11C-61032 | Section A103.2—Framing description. |
51-11C-61033 | Section A103.3—Component description. |
51-11C-610331 | Section A103.3.1—Single stud wall. |
51-11C-610332 | Section A103.3.2—Strap wall. |
51-11C-610333 | Section A103.3.3—Double stud wall. |
51-11C-610334 | Section A103.3.4—Log wall. |
51-11C-610335 | Section A103.3.5—Stress skin panel. |
51-11C-610336 | Section A103.3.6—Metal stud walls. |
51-11C-610337 | Section A103.3.7—Concrete and masonry walls. |
51-11C-61040 | Section A104—Below-grade walls and slabs. |
51-11C-61041 | Section A104.1—General. |
51-11C-61042 | Section A104.2—Component description. |
51-11C-61043 | Section A104.3—Insulation description. |
51-11C-61050 | Section A105—Floors over unconditioned space. |
51-11C-61051 | Section A105.1—General. |
51-11C-61052 | Section A105.2—Crawlspace description. |
51-11C-61053 | Section A105.3—Construction description. |
51-11C-61060 | Section A106—On-grade slab floors. |
51-11C-61061 | Section A106.1—General. |
51-11C-61062 | Section A106.2—Component description. |
51-11C-61063 | Section A106.3—Insulation description. |
51-11C-61070 | Section A107—Default U-factors for doors. |
51-11C-61071 | Section A107.1—Doors without NFRC certification. |
51-11C-610711 | Table A107.1(1)—Default U-factors for doors. |
51-11C-610712 | Table A107.1(2)—Default U-factors for revolving doors. |
51-11C-610713 | Table A107.1(3)—Default U-factors for steel emergency doors. |
51-11C-610714 | Table A107.1(4)—Default U-factors for steel garage and hangar doors. |
51-11C-61080 | Section A108—Air infiltration. |
51-11C-61081 | Section A108.1—General. |
51-11C-70000 | Appendix B—Default internal load values and schedules. |
51-11C-71010 | Section B101—General. |
51-11C-71020 | Section B102—Default tables of internal loads. |
51-11C-71021 | Table B102—Acceptable occupancy densities, receptacle power densities and service hot water consumption. |
51-11C-71030 | Section B103—Default schedules. |
51-11C-71031 | Table B103(1)—Assembly occupancy. |
51-11C-71032 | Table B103(2)—Health occupancy. |
51-11C-71033 | Table B103(3)—Hotel/motel occupancy. |
51-11C-71034 | Table B103(4)—Light manufacturing occupancy. |
51-11C-71035 | Table B103(5)—Office occupancy. |
51-11C-71036 | Table B103(6)—Parking garage occupancy. |
51-11C-71037 | Table B103(7)—Restaurant occupancy. |
51-11C-71038 | Table B103(8)—Retail occupancy. |
51-11C-71039 | Table B103(9)—School and warehouse occupancies. |
51-11C-80000 | Appendix C—Exterior design conditions. |
51-11C-80100 | Table C-1—Outdoor design temperatures for Washington. |
51-11C-80500 | Appendix D—Calculation of HVAC total system performance ratio. |
51-11C-90000 | Appendix E—Renewable energy. |
51-11C-90500 | Appendix F—Outcome-based energy budget. |