6 Signs You Have A Roof Leak

M&B Roofing • March 21, 2025

Is Your Roof Leaking? Here's How to Tell

Your home’s roof is the primary barrier between your shelter and the elements. When there is damage to your roof, this barrier weakens and becomes vulnerable to water infiltration. Water leaks in your roof can lead to severe structural problems for your home, not just the roof itself. Here are six signs you may have a leak in your roof:


1. Water Stains


Water stains can appear on your ceiling or walls and are a clear indicator that you have a water leak. These stains may appear dark or yellow in color. The stains are caused by particles in the water, especially rainwater, which contains more pollutants and other particles from the environment. Water stains can also emerge from leaky plumbing or appliances. If you're unsure about the state of your roof, it’s a good idea to contact a professional roofing service to assess any potential damage. A licensed roofer will be able to determine whether the leak is coming from your roof and provide solutions to prevent further damage.


2. Mold


If you notice mold growing in your attic or near your ceiling, you may have a roof leak. Mold needs moisture to grow. If your roof is functioning properly, there should be little to no moisture in your attic space. Mold growth indicates that moisture is entering the attic from somewhere, and the most likely culprit is your roof. Mold spores can break off into the air and be inhaled, causing various health issues for the people in your home. It’s important to have the mold removed and consult a roofing company to repair the leak, preventing further mold growth.


3. Damaged Shingles


While damaged shingles don’t always equate to a leak, they are often the starting point for leaks. What happens is the shingles become damaged, allowing water to sit in the cracks and further weaken the shingle. The weaker the roofing material, the more water can infiltrate between the shingles, into your attic, and even inside your home. If you notice damaged shingles before any water damage, it’s a good idea to get them repaired before the damage worsens.


4. Sagging Ceiling


If your ceiling is sagging, it's a strong indication that you have a water leak in your attic. Ceilings sag when their structure is compromised, often due to rotting wood or water damage. While a sagging ceiling can be caused by other factors, it’s important to have your roof inspected to ensure your family’s safety. If you repair the ceiling without fixing the water leak in the roof, you may be setting yourself up for more repairs in the near future.


5. Mildew Smell


Mildew is caused by moisture. While a mildew smell can be triggered by many things, you should check your attic to see if the smell is stronger there. Roof leaks lead to a buildup of moisture in the attic, which can create a strong mildew odor. This smell can also be a sign of rotting wood, which occurs due to increased moisture. If the wood in your attic rots, the structural integrity of your roof can be compromised. If you notice a mildew smell coming from your roof, have a trained roofer inspect your roof to ensure there are no leaks.


6. Noises Coming From Your Ceiling


If you hear constant noises from above in your home, you may be hearing water dripping in your attic. This noise may sound like dripping or tapping when it rains or shortly afterward. This is a strong indication of a water leak in your roof. If you hear these noises, you can check your attic for wildlife, but regardless, it’s a good idea to call an experienced roofer to locate any damage on your roof causing the leak.


Need a Roof Repair in Kankakee or Gilman, IL Areas?


If you notice any of the above signs, it may be time to call a reliable
roof repair service. M&B Roofing is a licensed, bonded, and insured roofing company serving the Kankakee, Gilman, Bourbonnais, Manteno, and surrounding areas. Whether you need a few new shingles, a leak repair, or an entirely new roof, M&B Roofing has you covered. Contact M&B Roofing today for a free quote!

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