ICC-ES AC166

Full Name

ICC-ES AC166 – Acceptance Criteria for Metal Roof Coverings

Scope

ICC-ES AC166 outlines the acceptance criteria for metal roof coverings used in building construction. Its scope encompasses the evaluation of various aspects of metal roof systems to ensure their compliance with building codes and performance standards. Specifically, AC166 covers:
  • Materials: it specifies the acceptable types and properties of metals used in roof coverings, including steel, aluminum, copper, and zinc. It also addresses the requirements for coatings, finishes, and other materials used in the system.
  • Design: it outlines the design criteria for metal roof coverings, considering factors such as panel profiles, fastening methods, wind uplift resistance, and structural capacity. It also addresses the design of accessories like flashing, gutters, and downspouts.
  • Testing: it details the specific tests required to evaluate the performance of metal roof coverings under various conditions, including wind uplift tests, water penetration tests, fire tests, and impact tests.
  • Evaluation: it provides a framework for evaluating metal roof coverings to ensure they comply with the acceptance criteria, including a review of their design, materials, and test results.
ICC-ES AC166 is crucial for manufacturers to demonstrate that their metal roof coverings meet the necessary performance and safety standards. It also assists building officials, designers, and contractors in selecting and installing appropriate metal roof systems for various applications.

Resources

Keywords

metal roof coverings; acceptance criteria; testing; evaluation; performance; design; materials; steel; aluminum; copper; zinc; coatings; finishes; panel profiles; fastening methods; wind uplift resistance; structural capacity; flashing; gutters; downspouts
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