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Chapter 51-11R WAC

Last Update: 6/14/22

STATE BUILDING CODE ADOPTION AND AMENDMENT OF THE 2018 EDITION OF THE INTERNATIONAL ENERGY CONSERVATION CODE, RESIDENTIAL

WAC Sections

HTMLPDF51-11R-10000Chapter 1 REScope and administration.
HTMLPDF51-11R-10100Section R101Scope and general requirements.
HTMLPDF51-11R-10200Section R102Alternative materials, design and methods of construction and equipment.
HTMLPDF51-11R-10300Section R103Construction documents.
HTMLPDF51-11R-10400Section R104Inspections.
HTMLPDF51-11R-10500Section R105Validity.
HTMLPDF51-11R-10600Section R106Referenced standards.
HTMLPDF51-11R-10700Section R107Fees.
HTMLPDF51-11R-10800Section R108Stop work order.
HTMLPDF51-11R-10900Section R109Board of appeals.
HTMLPDF51-11R-11000Section R110Violations.
HTMLPDF51-11R-11100Section R111Liability.
HTMLPDF51-11R-20000Chapter 2 REDefinitions.
HTMLPDF51-11R-20100Section R201General.
HTMLPDF51-11R-20200Section R202General definitions.
HTMLPDF51-11R-20201Section R202.1A.
HTMLPDF51-11R-20202Section R202.2B.
HTMLPDF51-11R-20203Section R202.3C.
HTMLPDF51-11R-20204Section R202.4D.
HTMLPDF51-11R-20205Section R202.5E.
HTMLPDF51-11R-20206Section R202.6F.
HTMLPDF51-11R-20207Section R202.7G.
HTMLPDF51-11R-20208Section R202.8H.
HTMLPDF51-11R-20209Section R202.9I.
HTMLPDF51-11R-20210Section R202.10J.
HTMLPDF51-11R-20211Section 202.11K.
HTMLPDF51-11R-20212Section R202.12L.
HTMLPDF51-11R-20213Section R202.13M.
HTMLPDF51-11R-20214Section R202.14N.
HTMLPDF51-11R-20215Section R202.15O.
HTMLPDF51-11R-20216Section R202.16P.
HTMLPDF51-11R-20217Section R202.17Q.
HTMLPDF51-11R-20218Section R202.18R.
HTMLPDF51-11R-20219Section R202.19S.
HTMLPDF51-11R-20220Section R202.20T.
HTMLPDF51-11R-20221Section R202.21U.
HTMLPDF51-11R-20222Section R202.22V.
HTMLPDF51-11R-20223Section R202.23W.
HTMLPDF51-11R-20224Section R202.24XYZ.
HTMLPDF51-11R-30000Chapter 3 REGeneral requirements.
HTMLPDF51-11R-30100Section R301Climate zones.
HTMLPDF51-11R-30200Section R302Design conditions.
HTMLPDF51-11R-30300Section R303Materials, systems and equipment.
HTMLPDF51-11R-30310Section R303.1Identification.
HTMLPDF51-11R-30311Table R303.1.3(1)Default glazed fenestration U-factor.
HTMLPDF51-11R-30312Table R303.1.3(2)Default opaque door U-factors.
HTMLPDF51-11R-30313Table R303.1.3(3)Default glazed fenestration SHGC and VT.
HTMLPDF51-11R-30314Table R303.1.3(4)Default U-factors for skylights.
HTMLPDF51-11R-30315Table R303.1.3(5)Small business compliance default table.
HTMLPDF51-11R-30320Section R303.2Installation.
HTMLPDF51-11R-30330Section R303.3Maintenance information.
HTMLPDF51-11R-40000Chapter 4 REResidential energy efficiency.
HTMLPDF51-11R-40100Section R401General.
HTMLPDF51-11R-40200Section R402Building thermal envelope.
HTMLPDF51-11R-40210Section R402.1General.
HTMLPDF51-11R-40211Table R402.1.1Insulation and fenestration requirements by component.
HTMLPDF51-11R-40213Table R402.1.3Equivalent U-factors.
HTMLPDF51-11R-40215Target/Proposed UA equations.
HTMLPDF51-11R-40220Section R402.2Specific insulation requirements.
HTMLPDF51-11R-40230Section R402.3Fenestration.
HTMLPDF51-11R-40240Section R402.4Air leakage.
HTMLPDF51-11R-40241Table R402.4.1.1Air barrier and insulation installation.
HTMLPDF51-11R-40250Section R402.5Maximum fenestration U-factor and SHGC.
HTMLPDF51-11R-40300Section R403Systems.
HTMLPDF51-11R-40310Section R403.1Controls.
HTMLPDF51-11R-40315Section R403.2Hot water boiler.
HTMLPDF51-11R-40320Section R403.3Ducts.
HTMLPDF51-11R-40330Section R403.4Mechanical system piping insulation.
HTMLPDF51-11R-40340Section R403.5Service hot water systems.
HTMLPDF51-11R-40350Section R403.6Mechanical ventilation.
HTMLPDF51-11R-40351Table R403.6.1Mechanical ventilation system fan efficacy.
HTMLPDF51-11R-40360Section R403.7Equipment sizing.
HTMLPDF51-11R-40370Section R403.8Systems serving multiple dwelling units.
HTMLPDF51-11R-40380Section R403.9Snow melt system controls.
HTMLPDF51-11R-40390Section R403.10Pool and spa energy consumption.
HTMLPDF51-11R-40391Section R403.10Other pools and spas.
HTMLPDF51-11R-40400Section R404Electrical power and lighting systems.
HTMLPDF51-11R-40410Section R404.1Lighting equipment.
HTMLPDF51-11R-40500Section R405Simulated performance alternative (Performance).
HTMLPDF51-11R-40510Section R405.1Scope.
HTMLPDF51-11R-40520Section R405.2Mandatory requirements.
HTMLPDF51-11R-40530Section R405.3Performance-based compliance.
HTMLPDF51-11R-40540Section R405.4Documentation.
HTMLPDF51-11R-40550Section R405.5Calculation procedure.
HTMLPDF51-11R-40551Table R405.5.2(1)Specifications for the standard reference and proposed designs.
HTMLPDF51-11R-40552Table R405.5.2(2)Default distribution system efficiencies for proposed designs.
HTMLPDF51-11R-40560Section R405.6Calculation software tools.
HTMLPDF51-11R-40600Section R406Additional energy efficiency requirements.
HTMLPDF51-11R-40610Section R406.1Scope.
HTMLPDF51-11R-40620Section R406.3Additional energy efficiency requirements.
HTMLPDF51-11R-40621Table R406.3Energy credits.
HTMLPDF51-11R-40700Section R407Certified passive house.
HTMLPDF51-11R-50000Chapter 5Existing buildings.
HTMLPDF51-11R-50100Section R501General.
HTMLPDF51-11R-50200Section R502Additions.
HTMLPDF51-11R-50300Section R503Alterations.
HTMLPDF51-11R-50400Section R504Repairs.
HTMLPDF51-11R-50500Section R505Change of occupancy or use.
HTMLPDF51-11R-51000Chapter 6Referenced standards.
HTMLPDF51-11R-58000Appendix RAOptional energy efficiency measuresOne step.
HTMLPDF51-11R-59000Appendix RBOptional energy efficiency measuresTwo step.
HTMLPDF51-11R-60000Appendix RCExterior design conditions.
HTMLPDF51-11R-60100Table RC-1Outdoor design temperatures for Washington.
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