ICC-ES AC516

Full Name

ICC-ES AC516 – Acceptance Criteria for Factory-Applied Fire-Retardant Penetrant for Wood Structural Panels and Sawn Lumber

Scope

ICC-ES AC516 outlines the acceptance criteria for evaluating factory-applied fire-retardant penetrants used on wood structural panels and sawn lumber. AC516 is intended for manufacturers seeking approval for their fire-retardant treatments under the ICC-ES evaluation report program.

The scope of AC516 covers:

  • Materials: defines the acceptable types of wood structural panels (e.g., plywood, OSB) and sawn lumber, as well as the types of fire-retardant penetrants that can be used.
  • Performance requirements: specifies the fire performance properties that the treated wood products must meet, such as flame spread, smoke development, and fire resistance ratings. It also outlines the durability requirements to ensure the fire-retardant treatment remains effective over time.
  • Test methods: outlines the specific tests and procedures to be followed to evaluate the fire performance and durability of the treated wood products, including standardized fire tests and exposure tests.
  • Quality control: details the quality control measures that manufacturers must have in place to ensure consistent product quality and compliance with the acceptance criteria. This includes requirements for penetrant application, curing, and testing.

Resources

Keywords

fire-retardant penetrant; wood structural panels; sawn lumber; acceptance criteria; evaluation report; fire performance; durability; test methods; quality control; flame spread; smoke development; fire resistance rating