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Water Penetration Testing

The prevention of water entry through fenestration and door assemblies is fundamental for durability. Qualifying and verifying the water penetration resistance of a building enclosure is possible through the specification of performance targets and water penetration testing. Water penetration testing can also be used as a diagnostic tool to help locate leaks.


ThermalWise acts as a third-party testing agency specializing in window, door and curtain wall water penetration testing. ThermalWise employs ASTM and CSA standardized testing procedures to assess and report the performance of building enclosure components.


ThermalWise conducts testing in accordance with:

ASTM E1105 – Standard Test Method for Field Determination of Water Penetration of Installed Exterior Windows, Skylights, Doors, Curtain Walls, and Wall AssembliesCSA A440.4-07 – Window, Door and Skylight Installation: Appendix D Field testing of window and door installations