SECTION 5.506 INDOOR AIR QUALITY
CALGreen Section: 5.506.1 Outside air delivery. For mechanically or naturally ventilated spaces in buildings, meet the minimum requirements of Section 121 (Requirements For Ventilation) of the 2010 California Energy Code, or the applicable local code, whichever is more stringent, and Division 1, Chapter 4 of CCR, Title 8.
Intent:
The purpose is to point building designers and contractors to the ventilation requirements in the
California Code of Regulations that are intended to improve indoor air quality for building occupants.
Existing Law or Regulation:
The California Energy Code, CCR, Title 24, Part 6, Sections 121(a) through 121(e) with flow rates as required by Table121-A. There is a possibility of a more stringent local ordinance.
Compliance Method:
Most engineers and contactors are familiar with following the provisions of the energy code that specify requirements for naturally and mechanically ventilated spaces, and may comply with this provision by using energy code compliance tools currently in place. Title 8 for Cal OSHA may
have additional regulations which emphasize air quality for workers in particular environments
which should be followed as required.
Enforcement:
Plan Intake: The reviewer and/or plan checker should review the plans and specifications to confirm that building ventilation is calculated and specified to Title 24, Part 6, and if applicable,
Part 8.
On-Site Enforcement: The inspector should review the permit set of plans against the natural ventilation features and mechanical ventilation systems that are installed on the project, requesting results of any testing of ventilation rates. Adequate pre-occupancy building ventilation shall be verified.
CALGreen Section: 5. 714.7.2 Outside air delivery. For mechanically or naturally ventilated spaces in buildings, meet the minimum requirements of Section 121 (Requirements For Ventilation) of the 2010 California Energy Code, or the applicable local code, whichever is more stringent, and Division 1, Chapter 4 of CCR, Title 8.
Intent:
CBSC adopted this section to provide clarity to the code user regarding the mechanical or natural delivery of outdoor air to additions or areas of alteration, including references to direct the code user to the California Energy Code, Title 24, Part 6 and Title 8, Chapter 4 for requirements.
Compliance and Enforcement: See § 5.506.1 of this guide
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