School TPO Flat Roof Leaking at 10 Years Old - Here's Why

A roof that's only 10 years old shouldn't be leaking. Full stop. But that's exactly what happens when the details get skipped during installation - and it's something we see more often than we'd like on commercial buildings.

We're currently working with a school to repair their TPO flat roof system. The goal right now isn't a full replacement - it's buying them time. Time to plan, time to budget, and time to protect the building from more damage in the meantime. That's a situation a lot of facility managers find themselves in, and targeted repairs are often the smartest move before committing to a full re-roof.

On a TPO system, the membrane itself is rarely the first thing to fail. It's the details - seams that weren't properly heat-welded, flashing that wasn't fully adhered, pipe boots that weren't sealed tight, corners that weren't reinforced. When any one of those gets skipped or rushed, water finds a way in. Every time. Our tech is on the roof cutting and fitting new TPO patches with a hot-air welder, making sure each repair is properly bonded so it actually holds up instead of just buying a few weeks of relief.

We take this kind of repair work seriously because the alternative is a building owner dealing with interior water damage, disrupted operations, and a repair bill that keeps growing. A little precision now goes a long way. That's true whether we're patching a trouble spot or planning a full system replacement down the road.