Section 120.8 — California Energy Code (Title 24, Part 6)

NONRESIDENTIAL BUILDING COMMISSIONING

Nonresidential buildings other than healthcare facilities, with conditioned space of 10,000 square feet or more, shall comply with the applicable requirements of Sections 120.8(a) through 120.8(i) in the building design and construction processes. All building systems and components covered by Sections 110.0, 120.0, 130.0, and 140.0 shall be included in the scope of the commissioning requirements in this Section, excluding those related solely to covered processes.

Nonresidential buildings other than healthcare facilities, with conditioned space of less than 10,000 square feet shall comply with the design review requirements specified in Sections 120.8(d), and shall include any measures or requirements necessary for completing this review in the construction documents in a manner consistent with Section 120.8(e).

Healthcare facilities shall instead comply with the applicable requirements of Chapter 7 of the California Administra- tive Code (Title 24, Part 1).

NOTE: Nonresidential buildings include nonresidential spaces such as nonresidential function areas within hotel/ motel and high-rise residential buildings. The requirements of Section 120.8 apply based on the square footage of the nonresidential spaces.

Insulation placement. Insulation installed to limit heat loss and gain from conditioned spaces to unconditioned spaces shall comply with all of the following:

A. Insulation shall be installed in direct contact with a

continuous roof or ceiling that is sealed to limit infiltration and exfiltration as specified in Section 110.7. This may include, but is not limited to, placing insulation either above or below the roof deck or on top of the finished ceiling.

B. When insulation is installed at the roof in nonresi dential buildings, fixed vents or openings to the outdoors or to unconditioned spaces shall not be installed. When the space between the ceiling and the roof is either directly or indirectly conditioned space, it shall not be considered an attic for the purposes of complying with CBC attic ventilation requirements.

C. Insulation placed on top of a suspended ceiling with

removable ceiling panels shall not be used to meet the Roof/Ceiling requirement of Sections 140.3 and 141.0.

Exception to Section 120.7(a)3: When there are conditioned spaces with a combined floor area no greater than 2,000 square feet in an otherwise unconditioned building, and when the average height of the space between the ceiling and the roof over these spaces is greater than 12 feet, insulation placed in direct contact with a suspended ceiling with removable ceiling panels shall be an acceptable method of reducing heat loss from a conditioned space and shall be accounted for in heat loss calculations.

NOTE: Vents that do not penetrate the roof deck and are instead designed for wind resistance for roof membranes are not within the scope of Section 120.7(a)3B.

(b) Wall insulation. The opaque portions of walls that separate conditioned spaces from unconditioned spaces or ambient air shall meet the applicable requirements of Items 1 through 7 below:

Metal building. The weighted average U -factor of the wall assembly shall not exceed 0.113.
Metal framed. The weighted average U -factor of the wall assembly shall not exceed 0.151.
Light mass walls. A 6-inch or greater hollow core concrete masonry unit shall have a U -factor not to exceed 0.440.
Heavy mass walls. An 8-inch or greater hollow core concrete masonry unit shall have a U -factor not to exceed 0.690.
Wood framed and others. The weighted average U factor of the wall assembly shall not exceed 0.110.
Spandrel panels and curtain wall. The weighted average U -factor of the spandrel panels and curtain wall assembly shall not exceed 0.280.

80 2019 CALIFORNIA ENERGY CODE

Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.

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NONRESIDENTIAL, HIGH-RISE RESIDENTIAL HOTEL/MOTEL OCCUPANCIES, AND COVERED PROCESSES—MANDATORY REQUIREMENTS

The commissioning described in this Section is in addition to any commissioning required by Title 24, Part 11, Section 5.410.2, 5.410.4 and subsections.

(a) Summary of commissioning requirements. Commissioning shall include completion of the following items:

Owner’s or owner representative’s project requirements;
Basis of design;
Design phase design review;
Commissioning measures shown in the construction documents;
Commissioning plan;
Functional performance testing;
Documentation and training; and
Commissioning report.

(b) Owner’s or Owner Representative’s Project Requirements (OPR). The energy-related expectations and requirements of the building shall be documented before the design phase of the project begins. This documentation shall include the following:

Energy efficiency goals;
Ventilation requirements;
Project documentation requirements, including facility functions and hours of operation, and need for after hours operation;
Equipment and systems expectations; and
Building envelope performance expectations.

(c) Basis of design (BOD). A written explanation of how the design of the building systems and components meets the OPR shall be completed at the design phase of the building project, and updated as necessary during the design and construction phases. The basis of design document shall cover the following systems and components:

Heating, ventilation, air conditioning (HVAC) systems and controls;
Indoor lighting system and controls;
Water heating systems and controls; and
Any building envelope component considered in the OPR.

(d) Design phase design review.

Design reviewer requirements. The design reviewer shall be the signer of the Design Review Kickoff Certificate(s) of Compliance and Construction Document Design Review Checklist Certificate(s) of Compliance as specified in Part 1 Section 10-103(a)1.
Design review kickoff. During the schematic design phase of the building project, the owner or owner’s representative, design team and design reviewer must meet to discuss the project scope, schedule and how the design reviewer will coordinate with the project team. The building owner or owner’s representative shall include the Design Review Kickoff Certificate of Com

pliance form in the certificate of compliance documentation (as specified in Part 1 Section 10-103).

Construction documents design review. The construction documents design review Checklist Certifi - cate of Compliance shall list the items checked by the design reviewer during the construction document review. The completed form shall be returned to the owner and design team for review and sign-off. The building owner or owner’s representative shall include this form in the certificate of compliance documentation (as specified in Part 1 Section 10-103).

(e) Commissioning measures shown in the construction documents. Complete descriptions of all measures or requirements necessary for commissioning shall be included in the construction documents (plans and specifications). Commissioning measures or requirements shall be clear, detailed and complete to clarify the commissioning process.

(f) Commissioning plan. Prior to permit issuance a commissioning plan shall be completed to document how the project will be commissioned and shall be started during the design phase of the building project. The commissioning plan shall include the following:

General project information; and
Commissioning goals; and
Systems to be commissioned; and
Plans to test systems and components, which shall include:

A. An explanation of the original design intent; and

B. Equipment and systems to be tested, including the

extent of tests; and

C. Functions to be tested; and

D. Conditions under which the test shall be performed;

and

E. Measurable criteria for acceptable performance; and

F. Commissioning team information; and

G. Commissioning process activities, schedules and

responsibilities. Plans for the completion of commissioning requirements listed in Sections 120.8(g) through 120.8(i) shall be included.

(g) Functional performance testing. Functional performance tests shall demonstrate the correct installation and operation of each component, system and system-to-system interface in accordance with the acceptance test requirements in Sections 120.5, 130.4 and 140.9. Functional performance testing reports shall contain information addressing each of the building components tested, the testing methods utilized, and include any readings and adjustments made.

Exception to Section 120.8(g): Healthcare facilities.

(h) Documentation and training. A systems manual and systems operations training shall be completed.

Systems manual. Documentation of the operational aspects of the building shall be completed within the systems manual and delivered to the building owner or

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NONRESIDENTIAL, HIGH-RISE RESIDENTIAL HOTEL/MOTEL OCCUPANCIES, AND COVERED PROCESSES—MANDATORY REQUIREMENTS

representative and facilities operator. The systems manual shall include the following:

A. Site information, including facility description, his tory and current requirements; and

B. Site contact information; and

C. Instructions for basic operations and maintenance,

including general site operating procedures, basic troubleshooting, recommended maintenance requirements, and a site events log; and

D. Description of major systems; and

E. Site equipment inventory and maintenance notes;

and

F. A copy of all special inspection verifications

required by the enforcing agency or the standards.

Systems operations training. The training of the appropriate maintenance staff for each equipment type or system shall be documented in the commissioning report. Training materials shall include the following:

A. System and equipment overview (i.e., what the

equipment is, what it does and with what other systems or equipment it interfaces)

B. Review and demonstration of operation, servicing

and preventive maintenance procedures

C. Review of the information in the systems manual

D. Review of the record drawings on the systems and

equipment

(i) Commissioning report. A complete report of commissioning process activities undertaken through the design, construction and reporting recommendations for postconstruction phases of the building project shall be completed and provided to the owner or owner’s representative.

Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code . Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8, and 25943, Public Resources Code.