ICC-ES AC266
Full Name
ICC-ES AC266 – Acceptance Criteria for Wood Structural Panel Roof Sheathing Factory-laminated with an Alternative Roof Underlayment
Scope
ICC-ES AC266 establishes the acceptance criteria for evaluating wood structural panel roof sheathing that is factory-laminated with an alternative roof underlayment. This document outlines the specific requirements and test methods for manufacturers seeking approval for their products under the ICC-ES evaluation report program.
The scope of AC266 includes:
- Materials: defines the acceptable types of wood structural panels, alternative roof underlayments, and adhesive systems that can be used in the laminated product.
- Performance requirements: specifies the structural, durability, and weather resistance properties that the laminated roof sheathing must meet.
- Test methods: outlines the specific tests and procedures to be followed to evaluate the performance of the laminated sheathing, including resistance to wind uplift, water penetration, and foot traffic.
- Quality control: details the quality control measures that manufacturers must have in place to ensure consistent product quality and compliance with the acceptance criteria.
Resources
Keywords
roof sheathing; wood structural panel; alternative roof underlayment; factory-laminated; acceptance criteria; evaluation report; performance requirements; test methods; quality control; wind uplift; water penetration; foot traffic; adhesive system