Water Penetration Testing in Kirkland, Washington

The QED Lab team has recently performing AAMA 502 water penetration testing at the new Magnolia at Moss Lake development. This exciting new townhome community is being constructed by Shelter Homes and is currently scheduled for completion in Summer 2023.

AAMA 502 testing is an important quality assurance procedure used to evaluate the field performance of newly installed windows, doors, and storefront systems. Unlike laboratory testing performed under controlled factory conditions, AAMA 502 testing is conducted directly on the building after installation. This allows project teams to evaluate how the installed systems are performing within actual construction conditions and identify any issues before project completion.

Water penetration testing plays a critical role in helping protect the long-term durability and performance of a building enclosure. Even small deficiencies around window systems, sealants, flashing transitions, or installation interfaces can allow moisture intrusion over time. Left unaddressed, water infiltration may contribute to structural deterioration, indoor air quality concerns, damage to finishes, and costly future repairs. Field testing helps ensure these systems are functioning as intended before the building is occupied.

During AAMA 502 testing, QED Lab technicians simulate wind-driven rain conditions using calibrated spray equipment and controlled pressure differentials. This process helps determine whether water is penetrating beyond the exterior plane of the fenestration system. Technicians closely monitor interior conditions while evaluating joints, frame transitions, sill conditions, and surrounding interfaces for any signs of leakage.

Projects such as Magnolia at Moss Lake demonstrate the increasing emphasis developers and contractors place on building enclosure performance and quality control. As modern construction continues to prioritize energy efficiency, durability, and occupant comfort, field testing has become an essential part of the construction process. Early detection of installation deficiencies allows corrections to be made before they become larger issues after occupancy.

Townhome communities in the Pacific Northwest face unique environmental challenges due to frequent rainfall and changing weather conditions throughout the year. Properly installed and tested window and wall systems are especially important in climates like Washington, where buildings are routinely exposed to moisture and wind-driven rain events. Performance testing helps verify that assemblies are prepared to withstand these real-world conditions.

QED Lab is proud to support project teams throughout the construction process by providing professional building enclosure testing and diagnostic services. From water penetration testing and air leakage investigations to curtain wall diagnostics and whole-building performance evaluations, our technicians work closely with contractors, consultants, and ownership teams to help verify compliance and performance objectives.

We appreciate the opportunity to be part of the Magnolia at Moss Lake project and look forward to seeing this new community completed. Projects like this continue to highlight the importance of proactive testing and quality assurance in creating durable, high-performing buildings for future residents.