Roof Performance Assessments
The core of what we do.
- Independent annual review
- Drainage, overflows, access and environmental threats
- Photo documentation and prioritized actions for your contractor or maintenance team
Commercial · Multi-Residential · Industrial
Roof Performance Management
Independent assessments, debris clearing and scheduled visits for flat and low-slope roofs.
Founded in 1989
More than 35 years managing and extending the lifecycle of low-slope commercial, multi-residential and industrial roofs
Reference StandardBased on the 2026 Handbook
Resilient Low-Slope Roofs: Adaptation Strategies for Extreme Rainfall Risk in a Changing Climate.
What We Do
Your roof is a major capital asset. We help it perform like one.
Debris Clearing
Done during the assessment, where needed.
- Debris cleared from drain strainers, scuppers and overflows
- Loose debris removed across the roof
- One less item on your list
Seasonal Visits and Monitoring
Ongoing attention after the assessment.
- Visits timed to each roof's exposure
- Optional Sense DSW water level monitoring
- Continuous visibility between visits
Proactive management and hands-on care that maximize your roof's performance and lifespan.
Why It Matters
Most roof drainage failures are predictable and preventable.
Existing low-slope roofs now face more intense rainfall and wind than their drainage was designed for. Keeping every drain strainer and scupper free of debris is one of the simplest ways to protect the roof.
Extreme rainfalls
Extreme rainfalls now exceed the hydraulic capacity of many older roof drain assemblies, leading to rapid ponding and structural loading.
Older designs
Most existing roofs were engineered for historic weather patterns that no longer match today's rainfall intensity or frequency.
Foreseeable risk
The consequences can range from minor leakage to serious water damage, and in some cases structural failure if water becomes trapped. These outcomes are increasingly predictable, and manageable.
The Bathtub Effect
Occurs when entrapped water cannot escape.
The risk is not how much rain falls, but what happens when rainfall arrives faster than the roof and its drainage can clear it. Blockage, debris, or a downstream restriction can turn a short, intense storm into standing water.
Climate change is increasing the importance of planning for these short-duration, high-intensity rainfall events. A roof that has performed adequately for decades may face conditions it was never designed to manage.
The Assessment
Inside a Roof Performance Assessment
A regular roof inspection asks whether the membrane is intact. Our assessment asks how the roof will perform in a heavy storm, and where it is most vulnerable.
When intense rainfall arrives, drainage, not the membrane, is often the critical weak point. The assessment makes that risk visible, then manageable.
- Drainage performance, overflow routes, ponding and access
- Debris and environmental threats at the drains, cleared where needed
- Roof mapping and photographed evidence
- Prioritized findings you can act on with your contractor or maintenance team
How this differs from a regular roof inspection
Regular Inspection
Roof Performance Assessment
Approach
Regular InspectionReactive
Roof Performance AssessmentProactive
Asks
Regular InspectionIs the membrane intact, and how many seasons remain?
Roof Performance AssessmentHow will this roof perform in a heavy storm, and where is it most vulnerable?
Delivers
Regular InspectionMembrane condition
Roof Performance AssessmentA clear picture of how your roof is performing, with photo documentation, prioritized actions and debris cleared where needed.
A visual, non-structural review. Not engineering or design. Scope is confirmed upon inquiry.
Next Step
Adaptation starts with knowing where the risk actually sits.
Discuss a single building or a full portfolio.