ICC-ES AC382
Full Name
ICC-ES AC382 – Acceptance Criteria for Laminated Fibrous Board Sheathing Material Used as a Water-resistive Barrier
Scope
ICC-ES AC382 outlines the acceptance criteria for laminated fibrous board sheathing materials that are specifically designed to serve as a water-resistive barrier (WRB) in building construction.
The scope of AC382 includes:
- Materials: it specifies the requirements for the composition and properties of the laminated fibrous board sheathing material, ensuring its suitability for use as a WRB. This includes the type of fibers, binders, and any coatings or treatments applied to the material.
- Water resistance: it details the testing methods and acceptance criteria for evaluating the water resistance of the sheathing material. This includes testing for water absorption, drainage, and resistance to water penetration under various conditions.
- Durability: it addresses the durability of the sheathing material as a WRB, ensuring it can withstand long-term exposure to weather, moisture, and other environmental factors without compromising its performance.
- Air leakage: it specifies the requirements for the air leakage characteristics of the sheathing material, as it plays a role in controlling air infiltration into the building envelope.
- Installation: it provides guidelines for the proper installation of the sheathing material as a WRB, including details on fastening, sealing joints, and integration with other building components.
- Quality control: it establishes a quality control program for manufacturers to ensure that the sheathing material consistently meets the requirements of the acceptance criteria, including regular testing and inspections.
The AC382 acceptance criteria are used by manufacturers to obtain an evaluation report from ICC Evaluation Service (ICC-ES), which demonstrates that their laminated fibrous board sheathing material complies with the applicable building codes and standards for use as a water-resistive barrier.
Resources
Keywords
sheathing; water-resistive barrier; laminated fibrous board; acceptance criteria; water resistance; absorption; drainage; penetration; durability; weathering; air leakage; fastening; sealing; building code; standard; evaluation report