Full Tear-Off on a Large Commercial Flat Roof Done Right

This is an 80-square commercial flat roof - and we're not cutting corners on it. Full tear-off, pitch correction, decking replacement, and new modified bitumen going down from start to finish. That's the only way to actually fix a roof like this instead of just kicking the problem down the road.

Here's the thing about aging flat roofs on commercial buildings: the visible surface is rarely the whole story. When we strip everything back, we get a clear look at the decking underneath - and that's where the real issues hide. Rotted boards, improper slope, sections that have been holding water for years. You can't address any of that without doing a proper tear-off.

Pitch correction is one of those details that separates a real re-roofing job from a patch-and-pray approach. Flat roofs aren't actually flat - they need a slight slope to move water toward the drains. Get that wrong, and it doesn't matter how good your membrane is. You'll still end up with ponding water and premature failure.

Modified bitumen is our material of choice for jobs like this. It's tough, it handles temperature swings well, and it bonds tightly to the deck when installed correctly. For a commercial building with this much rooftop equipment and foot traffic, you need something that's going to hold up under real-world conditions - not just look good on day one.

An 80-square roof is a serious investment, and the building owner deserves to have it done right. That means no shortcuts on the decking, no skipping the pitch work, and no rushing the membrane install. If your commercial roof is showing its age - bubbling, cracking, water intrusion, or just years of deferred maintenance - a full assessment is worth the time.