Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-51 - State Building Code adoption and amendment of the 2021 edition of the International Residential Code › Section 51-51-0102 - Section R102-Applicability

Current through Register Vol. 24-14, July 15, 2024
R102.5
Appendices.
Provisions in the appendices shall not apply unless
			 specifically referenced in the adopting ordinance. An appendix adopted by a
			 local jurisdiction shall not be effective unless approved by the state building
			 code council pursuant to
			 RCW
			   19.27.060 (1)(a).
EXCEPTIONS:
1. The state building code council has determined that
						  a local ordinance providing specifications for light straw-clay or strawbale
						  construction, requiring a solar-ready zone, requiring fire sprinklers, or
						  addressing construction and demolition material management or building
						  deconstruction in accordance with Appendix AR, AS, AT, AWV, AWY, or AWZ of this
						  code may be adopted by any local government upon notification of the
						  council.
Appendix AF, Radon Control Methods, Appendix AQ, Tiny
						  Homes, and Appendix AWU, Dwelling Unit Fire Sprinkler Systems, are included in
						  adoption of the International Residential Code.
R102.7.1
Additions, alterations, change
			 of use, repairs, or relocations.
Additions
,
alterations
,
repairs
, or relocations shall be
			 permitted to conform to the requirements of the provisions of Chapter 45 or
			 shall conform to the requirements for new structure without requiring the
			 existing structure to comply with the requirements of this code, unless
			 otherwise stated.
Additions
,
alterations
,
repairs
, and relocations shall not cause an existing structure
			 to become less compliant with the provisions of this code than the existing
			 building or structure was prior to the
addition
,
alteration
,
repair
, or relocation. Where
additions
,
alterations
, or changes of use to
			 an existing structure result in a use or occupancy, height, or means of egress
			 outside the scope of this code, the building shall comply with the
International Existing Building Code
.
EXCEPTIONS:
1. Additions with less than 500 square feet of
						  conditioned floor area are exempt from the requirements for Whole-House
						  Ventilation Systems, Section M1505.4.
2. Additions or alterations to existing buildings which
						  do not require the construction of foundations, crawlspaces, slabs or basements
						  shall not be required to meet the requirements for radon protection in Section
						  R332.1 and Appendix AF.
R102.7.2
Moved buildings.
Buildings or structures moved into or within a jurisdiction shall comply with
			 the provisions of this code, the
International Building Code
(chapter 51-50 WAC), the International Mechanical Code (chapter 51-52 WAC), the
			 International Fire Code (chapter 51-54A WAC), the Uniform Plumbing Code and
			 Standards (chapter 51-56 WAC), and the Washington State Energy Code (chapter
			 51-11R WAC) for new buildings or structures.
EXCEPTION:
Group R-3 buildings or structures are not required to
						  comply if:
1. The original occupancy classification is not
						  changed; and
2. The original building is not substantially remodeled
						  or rehabilitated. For the purposes of this section a building shall be
						  considered to be substantially remodeled when the costs of remodeling exceed 60
						  percent of the value of the building exclusive of the costs relating to
						  preparation, construction, demolition or renovation of foundations.
Statutory Authority:
				  RCW
				    19.27.031 and
				  chapters
				  19.27 and
				  34.05 RCW. 13-04-068, §
				  51-51-0102, filed 2/1/13, effective 7/1/13. Statutory Authority:
				  RCW
				    19.27.031 and
				  19.27.074. 10-03-098, §
				  51-51-0102, filed 1/20/10, effective 7/1/10. Statutory Authority:
				  RCW
				    19.27.074,
				  19.27.020, and
				  chapters
				  19.27 and
				  34.05 RCW. 07-01-090, §
				  51-51-0102, filed 12/19/06, effective 7/1/07. Statutory Authority:
				  RCW
				    19.27.031 and
				  19.27.074. 04-01-109, §
				  51-51-0102, filed 12/17/03, effective
				  7/1/04.