Window Water Penetration Testing
Identify deficiencies, and document performance under controlled conditions
Window water penetration testing supports:
- Construction Quality Assurance
When performed immediately after installation, testing verifies window performance while access is available and corrective action is efficient. - Forensic Leak Investigations
In existing, fully enclosed buildings, controlled pressure testing supports forensic investigations by isolating active water intrusion paths, confirming failure points, and providing clear documentation to guide repair decisions.
ASTM E1105 — Standard Test Method for Field Determination of Water Penetration of Installed Exterior Windows, Skylights, Doors, and Curtain Walls, by Uniform or Cyclic Static Air Pressure Difference — the industry-recognized benchmark for reliable, field-based water resistance evaluation.
Catch water intrusion problems early
Reveal hidden sources of damage
Avoid expensive and disruptive repairs
Receive detailed reports from field testing
Water Intrusion Observed During Water Pressure Test.
Photo by Structura View.
The Role of QA Sequencing in Water Pressure Testing
QA sequencing refers to strategically timing quality assurance activities—like water intrusion testing—at optimal points during construction. Performed immediately after installation, it verifies window performance while access remains easy and corrections stay efficient.
Catching problems before they’re sealed in can make the difference between a quick fix and a costly rebuild. Before interior work begins, water intrusion testing verifies the integrity of window installations under simulated storm pressure, using calibrated spray racks and controlled air pressure differentials.
Why Early Window QA Pays Off
Water intrusion is one of the most expensive building-envelope failures. Testing window performance during construction prevents that risk from showing up later, when repairs are messy and costly.
Structura View’s testing process gives contractors and owners clear, documented proof of performance. Results from the initial testing guide targeted fixes and additional retesting to confirm window installation integrity before enclosure continues.
A failed test isn’t bad news when it happens early — it’s proof that the quality assurance (QA) process works.
Avoid future rework and damage, preserve your project timeline, and improve installation quality before close-in.
That is a win for everyone on the project.
Damaged Drywall Even Before Project Close-in. Photo by Structura View. Photo by Structura View.
Water intrusion investigation performed on an enclosed building façade.
Water Penetration Testing for Existing Buildings
In addition to QA testing at installation, window water penetration testing plays a vital role in investigating active leaks in existing, enclosed buildings.
When building occupants experience water intrusion long after construction, controlled water penetration tests help isolate the source by applying pressure and rain simulation in specific sequences. This approach provides clear data on which assemblies or transitions are failing, distinguishes between design vs installation issues, and validates whether repairs effectively stop leakage.
Our investigative services include:
- Systematic Pressurization
- Monitored Water Application, and
- Detailed documentation of observed infiltration paths
The results help property owners, facility managers, and design teams make informed repair decisions, reduce guesswork, and improve long-term building performance—all without unnecessary disruption to occupied spaces.
Trusted by Teams Like Yours
We walk you through the data and turn it into action.
“On a facility with years of leak investigations, their report pinpointed the exact section we needed—no tearing up the roof.”
“Without StructuraView we would’ve hit the owner with a lot of unexpected change orders—this saved time and money.”