9.36.1. General

9.36.1. General
9.36.1.1. Scope
  1. This Section is concerned with the energy used by buildings as a result of
    1. the design and construction of the building envelope, and
    2. the design and construction or specification of systems and equipment for
      1. heating, ventilating or air-conditioning, and
      2. service water heating. (See Note A-9.36.1.1.(1).)
9.36.1.2. Definitions
  1. For the purpose of this Section, the term "common space" shall mean all spaces required to be conditioned spaces in accordance with the requirements of the Code that are not within a suite but shall not include crawl spaces and vertical service spaces. (See Note A-9.36.1.3.(3).)
  2. For the purpose of this Section, the term "overall thermal transmittance," or U-value, shall mean the rate, in W/(m2·K), at which heat is transferred through a building assembly that is subject to temperature differences. (See Note A-9.36.1.2.(2).)
  3. For the purpose of this Section, the term "effective thermal resistance," or RSI value, shall mean the inverse of the overall thermal transmittance of an assembly, in (m2·K)/W. (See Note A-9.36.1.2.(3).)
  4. For the purpose of this Section, the term "fenestration" shall mean all building envelope assemblies, including their frames, that transfer visible light, such as windows, clerestories, skylights, translucent wall panels, glass block assemblies, transoms, sidelights, sliding, overhead or swinging glass doors, and glazed inserts in doors, etc. (See Note A-9.36.1.2.(4).)
9.36.1.3. Compliance and Application
(See Note A-9.36.1.3.)
  1. Except as provided in Sentences (2) to (5), buildings shall comply with
    1. the prescriptive or trade-off requirements in Subsections 9.36.2. to 9.36.4.,
    2. the performance requirements in Subsection 9.36.5., or
    3. the NECB.
  2. Subsections 9.36.2. to 9.36.4. apply to
    1. buildings of residential occupancy to which Part 9 applies,
    2. buildings containing business and personal services, mercantile or low-hazard industrial occupancies to which Part 9 applies whose combined total floor area does not exceed 300 m2, excluding parking garages that serve residential occupancies, and
    3. buildings containing a mix of the residential and non-residential occupancies described in Clauses (a) and (b).
  3. 3) Subsection 9.36.5. applies only to
    1. houses with or without a secondary suite, and
    2. buildings containing only dwelling units and common spaces whose total floor area does not exceed 20% of the total floor area of the building. (See Note A-9.36.1.3.(3).)
  4. Buildings containing non-residential occupancies whose combined total floor area exceeds 300 m2 or medium-hazard industrial occupancies shall comply with the NECB.
  5. Buildings or portions of buildings that are not required to be conditioned spaces are exempted from the requirements of this Section. (See Note A-9.36.1.3.(5).)