maximum fenestration area of 40% of the gross above-grade wall area. Alternatively, commercial
buildings with vertical fenestration exceeding the prescriptive requirements for maximum vertical
fenestration area may show compliance using the Component Alternative Method in Section C402.1.5,
through the use of COMcheck.
(ii) ASHRAE 90.1 Compliance Path. Vertical fenestration is allowed up to 40% of the gross wall area,
prescriptively. If the vertical fenestration exceeds 40% of the gross wall area, the design team must use
energy modeling in accordance with Section 11 of ASHRAE 90.1 (“Energy Cost Budget Method”) or
Appendix G of ASHRAE 90.1 (“Performance Rating Method”) and as provided in subparagraph (iv) of
paragraph (1) of subdivision (f) of this section or Section 5.6 of ASHRAE 90.1 (“Building Envelope
Trade-off Option”).
(iii) Additional requirements in Section 11 and Appendix G. For new buildings 25,000 square feet and
greater in area, and which follow Section 11 or Appendix G, additional requirements must be satisfied
to demonstrate compliance with Section 5.2.3. The building envelope must comply with either Section
5.5 of ASHRAE 90.1 (“Prescriptive Building Envelope”) or the applicant must calculate an envelope
performance factor in accordance with Appendix C of ASHRAE 90.1 that meets certain thresholds
dependent on the occupancy of the building.
(4) Identification of related applications. Applicants must indicate in the application form all applications
related to the project or, if an application has not yet been filed, the name of the applicant or the applicant’s
firm and discipline for any anticipated related applications.
(e) Professional statement. Every application filed by a registered design professional for approval of construction
documents for a new building or alteration shall include a professional statement of either compliance with or
exemption from the Energy Code.
(1) Compliance. All new building and alteration applications must indicate compliance on the application form,
except as specifically excluded in paragraph (2) of this subdivision.
(2) Exemption. Only applications that consist entirely of work exempt from the Energy Code may indicate
exemption in the professional statement. The application must state one of the following bases for exemption:
(i) Historic building. Any alteration to an historic building is exempt. Any addition to an historic
building is not exempt, and must meet the requirements of the ECC for new construction.
(ii) Envelope of low-energy building. All the proposed work is related to the envelope system of a low-
energy, unconditioned building, or equipment building as described in ECC Chapter C4 or ECC Chapter
R4.
(iii) Categories of work not affecting energy use. Temporary structures (as described in sections 28-111
and BC 3103) are exempt from compliance with the Energy Code. In addition, the following work types
are exempt: fire alarm, fire suppression in a range hood, standpipe, sprinkler, fuel storage, construction
equipment, curb cut, fire protection plan, sidewalk shed, supported scaffold, fence, place of assembly,
temporary place of assembly, earthwork, support of excavation, builder’s pavement plan, protection
means and methods, suspended scaffold, subdivision, full demolition, and cranes. Other work types are
not exempt.
(iv) Post-approval amendment. A post-approval amendment for a job that was exempt under a prior
edition of the Energy Code.
(f) Energy analysis. An energy analysis is required for every project that is not entirely exempt. The energy analysis
must identify the compliance path followed, demonstrate how the project design complies with the Energy Code
and, for commercial projects, indicate whether the project is designed in accordance with ECC Chapters C2
through C6 or with ASHRAE 90.1.
(1) Accepted formats for energy analysis. Tabular analysis along with COMcheck or REScheck may be used
for different disciplines in the same application, as long as the compliance paths are identical. The following
formats may be used to present the energy analysis:
(i) Tabular analysis. For new buildings, additions and/or alterations to existing residential or commercial
buildings for which either ECC Chapters R2 through R6, ECC Chapters C2 through C6 or ASHRAE
90.1 has been used, and the applicant is complying prescriptively, the applicant may include a table
entitled “Energy Analysis” as described in figure 1.
Such table must compare the proposed values of each Energy Code regulated item in the scope of work
with the respective prescriptive values required by the Energy Code. The items must be organized by