ICC-ES AC366
Full Name
ICC-ES AC366 – Acceptance Criteria for Polypropylene Siding
Scope
ICC-ES AC366 outlines the acceptance criteria for polypropylene siding used as an alternative to traditional exterior wall coverings.
The scope of AC366 includes:
- Materials: it specifies the requirements for the polypropylene resin and any additives used in the siding, ensuring their suitability for exterior applications and resistance to degradation from weathering and UV exposure.
- Manufacturing: it details the manufacturing processes for the siding, including extrusion, molding, and finishing, to ensure consistent quality and performance.
- Performance: it outlines the testing methods and acceptance criteria for evaluating the performance of the siding, including its resistance to wind loads, impact, fire, moisture, and thermal cycling.
- Durability: it addresses the durability of the siding, ensuring it can withstand long-term exposure to environmental conditions without significant fading, cracking, or warping.
- Installation: it provides guidelines for the proper installation of the siding, including fastening methods, flashing details, and clearance requirements, to ensure its proper performance and weathertightness.
- Quality Control: it establishes a quality control program for manufacturers to ensure that the siding consistently meets the requirements of the acceptance criteria, including inspections and testing procedures.
The AC366 acceptance criteria are used by manufacturers to obtain an evaluation report from ICC Evaluation Service (ICC-ES), which demonstrates that their polypropylene siding complies with the applicable building codes and standards.
Resources
Keywords
polypropylene; siding; acceptance criteria; resin; extrusion; molding; wind load; impact resistance; fire resistance; moisture resistance; thermal cycling; fading resistance; cracking resistance; warping resistance; fastening; flashing; building code; standard; evaluation report