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, or requiring a solar-ready zone or requiring fire sprinklers in accordance with Appendix R, S, U or V of this chapter may be adopted by any local government upon notification of the council. |
| 2. Appendix F, Radon Control Methods, and Appendix Q, Dwelling Unit Fire Sprinkler Systems, are included in adoption of the International Residential Code. |
R102.7.1 Additions, alterations or repairs. Additions, alterations or repairs to any structure shall conform to the requirements for a new structure without requiring the existing structure to comply with the requirements of this code, unless otherwise stated. Additions, alterations or repairs and relocations shall not cause an existing structure to become unsafe or adversely affect the performance of the building.
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 F. |
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
19.27.074. WSR 20-21-041, § 51-51-0102, filed 10/13/20, effective 11/13/20; WSR 16-03-025, § 51-51-0102, filed 1/11/16, effective 7/1/16. Statutory Authority: RCW
19.27.031 and chapters
19.27 and
34.05 RCW. WSR 13-04-068, § 51-51-0102, filed 2/1/13, effective 7/1/13. Statutory Authority: RCW
19.27.031 and
19.27.074. WSR 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. WSR 07-01-090, § 51-51-0102, filed 12/19/06, effective 7/1/07. Statutory Authority: RCW
19.27.031 and
19.27.074. WSR 04-01-109, § 51-51-0102, filed 12/17/03, effective 7/1/04.]