GB/T 15227-2007 "Building curtain wall airtightness, watertightness, wind pressure resistance performance detection method", stipulates the building curtain wall airtightness, watertightness, wind pressure resistance three performance detection principle, detection device, detection conditions, detection steps and results judgment, etc. This standard provides a unified specification for scientifically and accurately evaluating the performance of building curtain walls under the action of gas penetration, rainwater leakage and wind pressure, and is an important testing basis for ensuring the mass and safety of building curtain walls.