CALGreen Section: 5.505.1 Indoor moisture control. Buildings shall meet or exceed the provisions of California Building Code, CCR, Title 24, Part 2, Sections 1203 (Ventilation) and Chapter 14 (Exterior Walls). For additional measures not applicable to low-rise residential occupancies, see Section 5.407.2 of this code.
Intent:
The intent is to direct the code user to other parts of Title 24 and this part for those provisions that are intended to reduce the probability of mold and mildew growth and improve air quality.
Existing Law or Regulation:
California Building Code Section 1203 for attic spaces and under-floor ventilation, Chapter 14 for a weather-resistant exterior wall envelope, and Section 5.407.2.2 Entries and openings in this code.
Compliance Method:
Design Team: Include details on the construction plans addressing issues of moisture control,
Contractor: Understand and install moisture control according to construction documents and manufacturer’s installation recommendations.
Note: Vapor control recommendations for different climate zones may found at www.buildingscience.com .
Enforcement:
Plan Intake: The reviewer and/or plan checker should review the plans and specifications to confirm that moisture control features which meet Title 24 are specified and detailed.
On-Site Enforcement: The inspector should review the permit set of plans and confirm that moisture control measures have been incorporated into the building. Collect a copy of self- certification form if completed and signed by the contractor.
CALGreen Section: 5.714.7.1 Indoor moisture control. Buildings shall meet or exceed the provisions of California Building Code, CCR, Title 24, Part 2, Sections 1203 (Ventilation) and Chapter 14 (Exterior Walls). For additional measures not applicable to low-rise residential occupancies, see Section 5.407.2 of this code.
Intent:
CBSC adopted this section to provide clarity to the code user regarding moisture control. CBSC is proposing to include references to direct the code user to the California Building Code for general ventilation and moisture control requirements, which are intended to protect occupants
from harmful molds and mildews.
Compliance and Enforcement: See § 5.505.1 of this guide
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