MG ROOFING, INC. |2714 Avalon AveMuscle ShoalsAL35661 | (256) 381-0379
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MG ROOFING, INC.
2714 Avalon Ave
Muscle ShoalsAL 35661
 (256) 381-0379
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Why Does My Commercial Flat Roof Leak?

Why Does My Commercial Flat Roof Leak?

While commercial rooftops are designed to be as durable as possible, leaks can still occur over time, especially as roofing materials age. Constant exposure to the elements can create several problems that lead to leaks. Particularly in large commercial rooftops, it’s important to catch leaks as quickly as possible before they spread and cause large scale damage. If you see any of these signs on your commercial roof, note that they are likely to cause leaks and should be addressed ASAP.

Poor Drainage

Commercial rooftops are usually “low slope” roofs to be as efficient with materials as possible. While these rooftops may look flat, they are actually designed with careful slopes and drainage plans so that any water naturally flows off of the roof when it rains.

When this type of drainage fails, rainwater will instead start pooling on the roof and linger for days. Commercial roofs are not designed for this, and that standing water causes damage to materials and eventually leads to very serious leaks. If you see pooling water on your commercial roof, don’t hesitate to call in a professional to take a closer look.

Membrane Damage

While there are many optional commercial roofing materials, one of the most popular are membranes that are very easy to roll along the roof and quickly bond together, then cover with a protective substrate. However, these membranes are susceptible to certain types of damage.

For example, a membrane may have low resistance to low or high temperatures, and develop cracks over the seasons as a result. These cracks provide entryways for water and can turn into leaks, especially after a rainstorm.

Storm damage may also affect membranes. If a storm blows large debris onto a membrane, it may create punctures and rips, which also allow for leaks. Even a bad hailstorm may dent and damage a membrane, making it more susceptible to problems later on.

Flashing prevents leaks from forming at these vulnerable edges. However, over time flashing can develop problems: It may rust, warp, or crack, allowing water to seep it at edges, bypass membrane layers, and create serious leaks.

Flashing Damage

Flashing is the metal strips that cover the edges of roofing material when they meet an object (a chimney, access point, vent, etc.). Flashing prevents leaks from forming at these vulnerable edges. However, over time flashing can develop problems: It may rust, warp, or crack, allowing water to seep it at edges, bypass membrane layers, and create serious leaks.

Older, Failing Roof Materials

Ultimately, a roof may simply be too old to properly deal with the local climate. Commercial rooftops usually last for up to several decades, until they become so worn that they need to be entirely replaced. Frequent problems and repairs are a sign of this.

Schedule your commercial roof inspection with MG Roofing, Inc. today to learn more! We can help track the source of leaks, provide quotes for repairs, and help make sure your roof maintenance is preventing any leak issues. Keep in mind, if you notice a leak inside the building, it’s important to contact an expert so they can see where the leak is on the outside – leaks can take very random routes through building materials once they bypass the roof!