ICC-ES AC219

Full Name

ICC-ES AC219 – Acceptance Criteria for Exterior Insulation and Finish Systems – for use with 2021, 2018, 2015, 2012 and 2009 I-Codes

Scope

ICC-ES AC219 outlines the acceptance criteria for evaluating Exterior Insulation and Finish Systems (EIFS) to ensure they meet specific performance requirements when used with the 2021, 2018, 2015, 2012, and 2009 International Codes (I-Codes).

The scope of AC219 covers various aspects of EIFS, including:

  • Materials: it specifies the acceptable materials for the components of EIFS, such as the insulation board, base coat, reinforcing mesh, finish coat, and adhesives.
  • Physical properties: it defines minimum requirements for physical properties like density, flexural strength, tensile strength, and bond strength of the different EIFS components.
  • Performance testing: it outlines standardized test methods to evaluate the performance of EIFS under different conditions, including:
  • Weather resistance: resistance to water penetration, freeze-thaw cycles, UV radiation, and other environmental factors.
  • Fire resistance: flame spread and smoke development limitations as per building code requirements.
  • Structural performance: resistance to wind loads and impact loads.
  • Installation: it provides guidelines for proper installation of EIFS to ensure optimal performance and adherence to building codes.

By adhering to AC219, manufacturers can demonstrate that their EIFS products meet the necessary safety and performance standards. This provides confidence to building officials, designers, and contractors that the EIFS will perform as intended in various climatic conditions and applications.

Resources

Keywords

exterior insulation and finish systems; acceptance criteria; insulation board; base coat; reinforcing mesh; finish coat; adhesives; density; flexural strength; tensile strength; bond strength; weather resistance; water penetration; freeze-thaw cycles; uv radiation; fire resistance; flame spread; smoke development; structural performance; wind loads; impact loads

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