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CHAPTER 5
<br />EXISTING BUILDINGS
<br />SECTION R601
<br />GENERAL
<br />8501.1 Scope. The provisions of this chapter shall
<br />control the alteration, repair, addition and change of
<br />occupancy of existing buildings and structures.
<br />R501.1.1 Additions, alterations, or repairs.
<br />Additions, alterations, or repairs t4 an existing
<br />building, building system or portion thereof shall
<br />comply with Sections R502, 8503 or R504.
<br />Unaltered portions of the existing building or
<br />building supply system shall not be required to
<br />comply with this code.
<br />8501.2 Existing buildings, Except as specified in this
<br />chapter, this code shal I not be used to require the
<br />removal, alteration or abandonment of, nor prevent
<br />the continued use and maintenance of, an existing
<br />building or building system lawfully in existence at
<br />the time of adoption of this code.
<br />8501.3 Maintenance. Buildings and structures; and
<br />parts thereof, shall be maintained in a safe and sanitary
<br />condition. Devices and systems that are required by
<br />this code shall be maintained in conformance with the
<br />code edition under which installed. The owner or the
<br />owner's authorized agent shall be responsible for the
<br />maintenance of buildings and structures. The
<br />requirements of this chapter shall not provide the basis
<br />for removal or abrogation of energy, conservation, fire
<br />protection and safety systems and dcvic es in existing
<br />structures.
<br />R501.4 Compliance, Alterations, repairs, additions
<br />and changes of occupancy to, or relocation of, existing
<br />buildings and structures shall comply with the
<br />provisions for alterations, repairs, additions and
<br />changes of occupancy or relocation, respectively, in
<br />the International Residential Code, International
<br />Building Code, International Fire Code, International
<br />Fuel Gas Code, International Mechanical Code,
<br />Uniform Plumbing Code, International Property
<br />Maintenance Code, and NFPA 70.
<br />R501.5 New and replacement materials. Except as
<br />otherwise required or permitted by this code, materials
<br />permitted by the applicable code for new construction
<br />shall be used. I.,ike materials shall be permitted for
<br />repairs, provided hazards to life, health or property are
<br />not created. Hazardous materials shall not be used
<br />where the code for new construction would not permit
<br />their use in buildings of similar occupancy, purpose
<br />and location.
<br />R501.6 Historic buildings. The building official may
<br />modify the specific requirements of this code for
<br />historic buildings and require alternate provisions
<br />which will result in a reasonable degree of energy
<br />efficiency. This modification may be allowed for
<br />those buildings or structures that are listed in the state
<br />or national register of historic places; designated as a
<br />historic property under local or state designation law
<br />or survey; certified as a contributing resource with a
<br />national register listed or locally designated historic
<br />district; or with an opinion or certification that the
<br />property is eligible to be listed on the national or state
<br />registers of historic places either individually or as a
<br />contributing building to a historic district by the state
<br />historic preservation officer or the keeper of the
<br />national register of historic places.
<br />SECTION 8502
<br />ADDITIONS
<br />R502.1 General. Additions to an existing building,
<br />building system or portion thereof shall conform to the
<br />provisions of this code as those provisions relate to
<br />new construction without requiring the unaltered
<br />portion of the existing building or building system to
<br />comply with this code. Additions shall not create an
<br />unsafe or hazardous condition or overload existing
<br />building systems. An addition shall be deemed to
<br />comply with this code where the addition atone
<br />complies, where the existing building and addition
<br />comply with this code as a single building, or where
<br />the building with the addition uses no .more energy
<br />than the existing building. Additions shall be in
<br />accordance with Section 8502.1.1 or R502.1.2.
<br />R502.1.1 Prescriptive compliance. Additions
<br />shall comply with Sections R502.1.1.1 throue
<br />R502.1.1.4.
<br />R502.1.1.1 Building envelope. New building
<br />envelope assemblies that are part of the
<br />addition shall comply with Sections R402.1,
<br />R402.2, R402.3.1 through R402.3.5, and
<br />8402.4.
<br />Exception: Where nonconditionedsaceis
<br />con _
<br />changed to ditioned simce, the buiidin�„
<br />enve`�ope of theaddition shall comply where
<br />t]ie `t 1A, as determined' in :Section 8402:1,4.
<br />6T lie ex ,ng-butldLing and the addition, and
<br />any afterauons that are part of6 piojeet is
<br />`Tess than orequalµto the UA generated for the
<br />existing build i.ng ......
<br />2016 Washington State Energy Code RE -39
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