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ICC-ES AC340 – Acceptance Criteria for Patio Covers


ICC-ES AC340 establishes the requirements for patio covers to be recognized in an ICC-ES evaluation report under the International Building Code (IBC) and the International Residential Code (IRC).

The scope of AC340 includes:

  • Materials: specifies acceptable materials for patio cover construction, including structural framing, roofing, and glazing materials.
  • Design and construction: outlines design and construction requirements to ensure patio covers are safe and structurally sound, considering factors like wind loads, snow loads, and dead loads.
  • Performance: defines performance criteria that patio covers must meet, such as resistance to wind uplift, water penetration, and snow accumulation.
  • Testing: details testing procedures used to evaluate patio cover performance, including structural tests, water penetration tests, and wind uplift tests.

By outlining these requirements, AC340 ensures that patio covers meet the necessary standards for safety, durability, and compliance with building codes. It provides confidence to building officials, designers, and homeowners that the patio covers are properly designed and constructed.

ICC-ES AC340 Accredited Inspection Agency

Applied Testing & Geosciences, LLC is accredited for performing inspections using the ICC-ES AC340 acceptance criteria.

Contact us for more information.



patio cover; wind load; snow load; structural design; performance criteria; testing; building code