[heading-style-h3]Roof Leaks Around Rooftop Units: What to Inspect First[heading-style-h3]

‍

‍

[heading-style-h4]Why RTU leaks are easy to misread[heading-style-h4]

‍

Water near a rooftop unit can enter through the roof, the curb, a penetration, an old sealant repair, or even equipment-related paths. If the inspection only looks at the membrane, the actual source can be missed.

Facility managers also need to know whether another trade has affected the roof. HVAC work, foot traffic, tools, or panel access can damage membrane areas around the unit.

‍

‍

[heading-style-h4]What to inspect first around rooftop units[heading-style-h4]

‍

The inspection should move from the equipment detail outward.

‍

• RTU curb flashing and counterflashing conditions.
• Sealant joints, pipe penetrations, and pitch pockets.
• Membrane seams and patches near the unit.
• Drainage around the unit and ponding zones.
• Foot traffic damage and service access paths.

‍

‍

[heading-style-h4]RTU leak diagnosis table[heading-style-h4]

‍

‍

‍

[heading-style-h4]How Flat Roof Pros approaches this[heading-style-h4]

‍

Flat Roof Pros inspects RTU leak areas by checking curb details, penetrations, drainage, membrane condition, and service traffic. The recommendation should identify the likely source before repair begins.

‍

‍

[heading-style-h4]Common questions[heading-style-h4]

‍

Is the HVAC contractor or roofer responsible for an RTU leak?
‍The source has to be inspected first. The issue may be roof flashing, equipment, penetration detailing, or damage from rooftop work.

‍

Can RTU leaks be prevented?
‍Regular inspections, walk paths, post-trade checks, and documented maintenance can reduce the risk of repeat issues.

‍