Cornerstone Architectural Group was engaged to support the Port of Seattle with a comprehensive condition assessment of multiple roofing systems at the secured Terminal 5 shipping facility. Due to the operational sensitivity and continuous activity at the terminal, site access and investigative procedures were carefully coordinated to minimize disruption while ensuring a thorough evaluation of existing conditions.
Our team conducted on-site visual reviews across three facility roofs to evaluate overall system performance, identify areas of deterioration, and estimate remaining service life. Observations included membrane conditions, drainage performance, flashing and penetration detailing, and transitions between roof elevations where leaks and failures most commonly occur. These initial field surveys established a baseline understanding of roof condition and informed subsequent investigative efforts.
To supplement visual observations with data-driven analysis, a thermographic drone survey was deployed to scan roof surfaces for thermal irregularities. This non-invasive method allowed the team to efficiently identify potential moisture intrusion and insulation deficiencies not visible from surface inspection alone. Thermal imaging results were analyzed to pinpoint suspect areas requiring further verification.
Following the aerial survey, targeted roof cuts were performed at select anomaly locations. These investigative openings enabled confirmation of roof assemblies, insulation conditions, and the presence or absence of trapped moisture. Each test location was documented and subsequently restored, ensuring continued roof performance following investigation activities.
Cornerstone consolidated field observations, thermal data, and destructive testing results into a comprehensive roof analytics report. The report provided the Port of Seattle with a clear understanding of current roof conditions, risk areas, and anticipated performance, along with actionable recommendations to support maintenance planning, budgeting, and long-term capital improvement strategies.
Through a structured and methodical assessment process, the project delivered defensible, data-backed insights that allow the Port to proactively manage facility assets while maintaining operational continuity at one of the region’s critical maritime facilities.
