Signs of Roof Water Damage

When you spot interior signs of roof damage, issues have lingered far too long, and your structure needs immediate attention. Don’t ignore the red flags—hire professionals to solve the problems right away.

The Dangers of Roof Water Damage

Many factors lead to roof water damage. When the roofing membrane is exposed to excessive moisture, the structural integrity of your roof is compromised.

Whether your older roofing system has exceeded its service life or hail has gotten the best of your structure, it’s important to address roof water damage as soon as it’s discovered. Otherwise, you risk paying for more expensive roofing projects due to extensive damage that was ignored for too long.

What Are the Signs of Roof Water Damage?

Commercial roofs are some of the most durable and weather-resistant structures in the world. However, they’re still not 100% invincible. To keep your roofing system standing strong for years to come, it’s important to be aware of the common signs of damage. Although many signs of roof water damage are only noticeable after a thorough roof inspection, a few other red flags are obvious to building owners, such as:

Roof Leaks

Usually, it’s fairly straightforward how to tell if your roof is leaking. In most cases, all you have to do is look for water falling from the ceiling or a fixture. However, roof water damage can be deceiving in terms of the level of severity and even where the water is coming from. The damage can be several feet from the water’s starting point. Because of this, it’s important not to hire illegitimate roofing companies or try to repair the roof leak by yourself. Only skilled technicians can pinpoint the source and develop a streamlined plan to fix it.

Ceiling and Wall Stains

Signs of water damage in the ceiling and walls often appear as dark stains. This means so much water has overwhelmed your roofing membrane that it’s warped your roof deck and begun to seep down the wall panels. As one of the most noticeable signs of roof leaks, water stains are unsightly, but they can also lead to other issues that jeopardize the health and well-being of building occupants.


Excessive water in the walls, under the roofing underlayment, or in dark corners of the building eventually leads to mold spores. Although mold is found everywhere, excessive amounts of mold and prolonged exposure to it are dangerous to people’s health and could cause symptoms such as headaches, dizziness, and difficulty breathing.

Not only is mold harmful to inhale, but it also causes the unpleasant smell of mildew. You want to draw people into your business, not push them away. When visitors and employees can smell mildew, it’s not good for business. To avoid discomfort caused by mold or mildew, it’s wise to take roofing problems seriously and eliminate them immediately.


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