Many commercial buildings that have flat roofs have either an asphalt roof or EPDM layered membrane installed. While both roofing types have benefits, there are still some common issues that property owners will likely face. If you catch these problems early, a qualified roofing contractor can repair or replace your roof before the interior of your building is exposed to the elements.

5 Problems to Watch for in a Flat Roof System

1. Alligatoring

If you have an asphalt roof, you need to have yearly inspections to watch for deterioration. Once the asphalt ages and loses its elasticity, it will begin to crack and bubble. This creates an appearance that resembles the skin of an alligator, hence the name. While minor damage can be patched relatively easy, an asphalt roof that gets to this point will require a replacement.

2. Water Pooling

Because flat roofs do not promote natural watershed and require strategically placed drains, rainwater has a tendency to find dips in the roofing and stay there. As flat roofing ages, both asphalt and EPDM roofs will not remain level, and water will collect over time. The longer the water remains, the more likely it will begin to deteriorate the surface materials.

3. Membrane Buckling

Because building shift and settle over time, the membrane of an asphalt roof can buckle from excessive movement. If this happens, you should contact a roofing contractor immediately to have both your roof surface and underlying structure inspected.

The buckling means that either something structural has shifted enough to lift and distort the roof surface or the exterior material has been compromised and needs replacement.

4. Flashing Separating

As your roof heats and cools throughout the seasons, the roofing materials will expand and contract regularly. Have a roofing contractor periodically inspect not only your roof surface but the flashing around edges and around vent pipes. Once the flashing separates from the roofing, it creates a vulnerable spot for water to enter your building.

5. Rubber Shrinking

With all of the expanding and contracting over time, rubber roofs are known to separate at the seams, and the layers of the membrane may begin to delaminate or separate from one another. Yearly inspections can help catch this problem early, which can then be repaired easily before your building experiences any water damage.

 

If you have any issues with your commercial property’s flat roof or just want to take steps to begin regular inspection and maintenance, contact Wimmer Roofing & Exteriors today. This Denver, CO, roofing contractor guarantees quality and cost-effective repair or replacement for your commercial roofing, including TPO, modified bitumen, and EPDM roofing systems. Call (720) 339-7247 for a free estimate. Visit them online for more information about the company.