ICC-ES AC220
Full Name
ICC-ES AC220 – Acceptance Criteria for Sheet Radiant Barriers
Scope
ICC-ES AC220 establishes the acceptance criteria for evaluating sheet radiant barriers used in building construction. These barriers are designed to reduce heat transfer by thermal radiation, contributing to improved energy efficiency in buildings.
The scope of AC220 covers:
- Material composition: it specifies the acceptable materials and construction for sheet radiant barriers, which typically consist of a thin layer of aluminum foil laminated to a reinforcing material.
- Reflective properties: it defines the minimum requirements for the radiant barrier’s reflectivity, ensuring it effectively reflects radiant heat.
- Physical properties: it outlines the necessary physical properties, such as tensile strength and tear resistance, to ensure durability and proper installation.
- Fire performance: it addresses the fire safety aspects of the radiant barrier, including flame spread and smoke development limitations.
- Installation: it provides guidelines for the correct installation of sheet radiant barriers in various building applications, such as roofs and walls.
By adhering to AC220, manufacturers can demonstrate that their sheet radiant barriers meet the required performance standards for reducing radiant heat transfer. This helps building officials, designers, and homeowners make informed decisions about incorporating radiant barriers into building projects for energy efficiency.
Resources
Keywords
sheet radiant barriers; acceptance criteria; reflectivity; tensile strength; tear resistance; flame spread; smoke development; installation; heat transfer