ICC-ES AC438
Full Name
ICC-ES AC438 – Acceptance Criteria for Alternative Asphalt Roofing Shingles
Scope
ICC-ES AC438 establishes the acceptance criteria for alternative asphalt roofing shingles that deviate from the standard specifications outlined in ASTM D3462. These alternative shingles may incorporate innovative materials or designs while still meeting performance and safety requirements.
The scope of AC438 includes:
- Product definition: defines alternative asphalt shingles broadly, encompassing various types of reinforcing felt, asphalt coatings, and surface granules or alternative surfacing materials.
- Performance requirements: specifies minimum performance criteria for fire resistance (Class C) and wind resistance (Class D, 90 mph) based on ASTM D7158.
- Testing and evaluation: outlines testing procedures to assess fire resistance, wind resistance, tear strength, pliability, and other relevant properties.
- Quality control: requires manufacturers to have quality control programs in place to ensure consistent product quality and performance.
- Labeling and marking: specifies requirements for product labeling and marking to provide information to consumers and building officials.
AC438 aims to promote innovation in the roofing industry while ensuring that alternative asphalt shingles meet the necessary performance and safety standards for building code compliance.
Resources
Keywords
acceptance criteria; alternative asphalt roofing shingles; performance requirements; fire resistance; wind resistance; ASTM D7158; testing procedures; tear strength; pliability; quality control; labeling; marking