GB/T 29907-2013

This standard specifies a laboratory test method to evaluate the water penetration resistance of curtain walls when subjected to simulated dynamic wind pressure, including both positive and negative pressure cycles. It is applied in the construction industry for testing and qualifying the performance of building curtain wall systems, particularly for high-rise or wind-exposed structures where wind-driven rain infiltration is a concern. The method helps manufacturers, testing labs, and specifiers ensure curtain wall assemblies meet required watertightness criteria under realistic wind conditions.