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Quality Control and Inspection

AITC provides Quality Marks and Certificates of Conformance to licensed glulam manufacturers. Only AITC-licensed glulam producers are permitted to use these Quality Marks and Certificates to identify products conforming to ANSI/AITC A190.1.
The American Institute of Timber Construction strives to bring together all aspects of the engineered timber industry through providing proper specifications and oversight on products for safe, long-lasting, high-quality timber construction.

AITC’s Quality Control and Inspection Program for structural glued laminated timber works to:

  • Standardize production, testing, inspection, identification, and certification of structural glued laminated timber.
  • Improve economies through wider utilization of standards.
  • Ensure the manufacture of reliable products.
 The Program consists of three basic elements:
  • Licensing of qualified glulam manufacturers whose personnel, procedures and facilities comply with the requirements of the American National Standard for Wood Products - Structural Glued Laminated Timber - ANSI/AITC A190.1.
  • Continuous maintenance of the qualified manufacturer’s quality control system in accordance with ANSI/AITC A190.1.
  • Periodic inspection and verification, by the AITC Inspection Bureau, of the licensed laminator’s quality control system, procedures and production.

Long-span glulam reduce the need for interior columns in the second-floor office space of Green Gables Timber Frame Barn, Lake Geneva, WI.

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