NA5.9 Verification of Continuous Air Barrier

An independent third-party verification shall be conducted in accordance with the following requirements:

  1. A design review shall be conducted to verify and document compliance with the requirements Section 140.3(a)9, specifically:
    1. All air barrier components are identified on construction documents
    2. All joints, interconnections, and penetrations of the continuous air barrier components are identified on construction documents
    3. The continuous air barrier extends on all surfaces of the building envelope (walls, roof, and lowest floor)
    4. The continuous air barrier is designed to resist positive and negative pressures from wind, stack effect, and mechanical ventilation.
    5. The compliance documents indicate the intent to verify the continuous air barrier by way of on-site visual inspection.
  2. Inspection shall occur during construction when the continuous air barrier is accessible for a visual inspection. The entire continuous air barrier shall be inspected. The third-party entity conducting the verification shall coordinate with the construction team to schedule site visits such that the entire continuous air barrier is verified.
  3. Inspection of the continuous air barrier materials and assemblies shall verify the following are installed correctly:
    1. Transitions to adjacent air barrier systems – including but not limited to roof parapet transitions, glazed framing systems to adjacent framed wall assemblies’ transitions, plaza waterproofing to podium transitions, vertical wall to soffit transitions
    2. Detailing of penetrations through air barrier systems.
    3. Building assemblies used as ducts or plenums
    4. Contractor internal quality control/quality assurance

This panel displays referenced content when certain links are clicked.

This program is funded by California utility customers and administered by Pacific Gas and Electric Company (PG&E), San Diego Gas & Electric Company (SDG&E®), and Southern California Edison Company (SCE) under the auspices of the California Public Utilities Commission.

© 2024 PG&E, SDG&E and SCE. All rights reserved, except that this content may be used, copied, and distributed without modification. Neither PG&E, SDG&E, nor SCE — nor any of their employees makes any warranty, express of implied; or assumes any legal liability or responsibility for the accuracy, completeness or usefulness of any data, information, method, product, policy or process disclosed in this document; or represents that its use will not infringe any privately-owned rights including, but not limited to patents, trademarks or copyrights.