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What Damage Can a Leaking Roof Cause?

Updated: Jun 13

Your roof protects you from rain, wind, sun, and other elements that you don't want inside your home. But when it gets a leak, it's a big problem. It's not just a little drip – it can cause serious damage to your house and even make you sick. Let's talk about why a leaky roof is bad news and what can happen if you don't fix it.

Call BMG Exteriors to repair your roof leak

5 Consequences of a Leaking Roof

1. Structural deterioration

At first glance, a few drops of water seeping through the ceiling may seem inconsequential. However, over time, even the smallest leak can lead to significant structural damage. Water infiltrating through the roof can saturate insulation, weaken wooden rafters, and compromise the integrity of drywall and ceilings. This persistent moisture creates the ideal environment for mold and mildew growth, further exacerbating structural decay. Left unchecked, these issues can escalate into costly repairs and compromise the stability of the entire home.

2. Health hazards

Beyond structural concerns, a leaking roof poses serious health risks to occupants. Mold spores thrive in damp, dark environments, growing rapidly in the wake of water intrusion. Breathing in mold-contaminated air can trigger respiratory problems, worsen allergies, and even lead to chronic health conditions. Additionally, prolonged exposure to mold can weaken the immune system, leaving individuals more susceptible to other infections and illnesses. Therefore, a leaking roof not only compromises the physical integrity of a home but also jeopardizes the health and well-being of its inhabitants.

There are 2 types of growth, limited and systemic:

  • Limited: Growth occurs when your house or building has good ventilation to prevent condensation, keeping the mold in an immediate area.

  • Systemic: Occurs when there is enough moisture buildup to cause growth throughout the entire area. This will, in most cases need professional assistance from a mold remediation contractor.

3. Electrical hazards

Water and electricity are a dangerous combination. When a roof leak infiltrates the wiring and electrical systems of a home, it creates a potentially deadly situation. Water can corrode electrical components, leading to short circuits, sparks, and even fires. Moreover, moisture-laden ceilings pose an electrocution risk to anyone in close proximity. To mitigate these hazards, it's important to address roof leaks promptly and enlist the expertise of qualified professionals to assess and repair any damage to electrical systems.

4. Financial burden

The financial toll of a leaking roof extends far beyond the cost of repairs. Left unattended, water damage can escalate rapidly, necessitating extensive restoration efforts and driving up expenses exponentially. From replacing waterlogged insulation and drywall to repairing structural damage and addressing mold infestations, the costs of neglecting a leaking roof can really add up. Furthermore, insurance coverage for water damage caused by roof leaks may be contingent upon timely maintenance and proactive measures, making it even more important to address issues promptly.

5. Diminished property value

A leaking roof can significantly diminish the value of a property, detracting from its aesthetic appeal and structural integrity. Potential buyers are wary of investing in homes affected by water damage, mold infestations, and compromised roofing systems. Even if the visible signs of damage are remediated, the stigma associated with a history of roof leaks can deter prospective buyers and limit the resale value of the property.

What Are Some Signs of a Leaky Roof?

We strongly recommend roof inspections. At a minimum, one per year and/or after major storms with wind and rain or heavy snowfall. A roof inspection is a small investment in protecting your investments. Even a properly installed roof system can be compromised by heavy storms.

Here are some common signs of a roof leak:

  • · Discolored spots on ceilings or walls

  • · Paint peeling around dormers or skylights

  • · Plater develops blisters

  • · Water stains in soffit areas

  • · Musty odor in attic

  • · Dark mold spots on the underside of the roof decking

Finding the source of your leak could present challenges. Water can travel along rafters, beams, and even along sheet rock until it finds a point of infiltration. Having a professional look at it is a good idea to help with timely leak detection and preventing severe structural damage and mold issues.

Bottom line: Do not delay repairing a roof leak. Do your research and make sure to hire a professional, licensed contractor.

Stay Healthy,

The BMG Team

83 views3 comments


Leaks are the real enemies of any kind of roofing system. To deal with leaks, I always carry a bucket of Liquid butyl rubber that gives me an instant solution to all my roofing issues. Liquid EPDM is a solvent based, one coat, no primer needed coating having a life expectancy of 15 to 20 years. Liquid butyl rubber will fix all roofing issues like leaks, cracks, wear n tear instantly when completely dry. Once fully cured, it transforms into a smooth seamless membrane with an aesthetically pleasing look to the roof and gives a better alternative to costly roof replacements. Moreover, it can withstand ponding water 365 days a year as it has extreme waterproofing abilities. 


Roof leaks can damage the whole roof if not fixed on time that's the reason, everyone looks for a roof repair company immediately after spotting the roof leaks.


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