Most commercial buildings have flat roofs, but one problematic aspect of their design is when certain parts dip lower than the others. Learn the signs of low spots on commercial roofing so you can have them repaired and avoid more expensive problems.

How to Identify Low Spots on Your Flat Roof

1. Ceiling Damage

Start your inspection inside the building. Check the ceiling for signs of low spot damage, such as sagging and water stains. These indicate that water is pooling above and roof repairs are needed.

2. Pooling Water

When inspecting the top of the building, one of the clearest signs of a low point is accumulated water in a particular area. As rain hits the roof, it naturally pools in these dips in the construction, so check after a storm or use a hose to test for low spots. You can also look for dried sediment circles where the water collected before evaporating.

3. Clogged Drains

Clogged drains don’t allow rainwater to flow properly, so it ends up pooling on the roof. This added stress can develop into a permanent low spot if it isn’t fixed.

4. Collected Dirt

Dirt and dust tend to collect in low points on flat roofs. The change in grade protects the particles from the wind and keeps them in place. If the rest of the roof is fairly clean save for one spot, it’s usually a dip.

 

If you think your commercial roofing has a low spot, contact the experts at Al Rezentes Roofing in Kailua, HI. As Oahu’s premier roofing company for the past 30 years, they’ve helped local business owners with a variety of roofing problems. Their highly trained team will come out to diagnose any potential low spots and provide fast and reliable repairs. Schedule an appointment by calling (808) 230-8005, or learn more about their services and warranties online.