AAMA 501.2 TEST - WHAT IS IT? AND WHY?

AAMA 501.2 isa field-applied water test standard used to verify the water-tightness of installed storefronts, curtain walls, and sloped glazing systems. It involves using a specialized spray nozzle at 30-35 PSI to spray joints and seals at a rate of 1 minute per lineal foot, typically testing a minimum of 100 sq. ft.

Key Aspects of AAMA 501.2 Testing:

  • Purpose: It acts as a quality assurance check for field-installed glazing components to detect leaks early.
  • Procedure: A, specialized rain wand kit with a pressure gauge applies water at 30-35 PSI, held 12 inches away from the surface.
  • Test Area: The test is applied to joints and seals for 5 minutes, usually with the interior left unfinished to easily detect water intrusion.
  • Failure Criteria: Any water penetration that passes the interior plane of the seal, or more than 1/2 oz. of water collecting on interior framing within 5 minutes, constitutes a failure.
  • Usage: Commonly used for new construction, it is suitable for checking for water intrusion in existing structures as well. 
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