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What is the Most Common Cause of Roof Leaks?

What is the Most Common Cause of Roof Leaks?

Roof leaks are a nightmare for homeowners because they can cause extensive water damage, leading to expensive restoration and costly roof replacement or repairs. However, in order to avoid having to deal with roof leaks it’s important to know what causes them. Find out more about what causes roof leaks below so you know how to prevent them!

1. Damaged Flashing

Flashing are pieces of metal installed on roof joints and under shingles that are used to prevent water seepage. Protected by a rubber coating, the metal of flashing can be cracked by harsh weather conditions like rain or high winds, which can result in roof leaks. If you notice that your flashing is damaged, contact a roofing company immediately.

2. Ice Dam Build-up

An ice dam is common during winter months when snow builds up. This happens when a ridge of ice is formed at the edge of the roof, preventing melting snow from draining off. This allows the ice dam to gradually increase in size and weight, putting more pressure on the roof and eventually damaging it. To prevent this, you can invest in a roof rake or ask a roofing company for help once you notice an ice dam on your roof.

3. Missing or Broken Shingles

Roof leaks can happen when a roof has missing or broken shingles. When some shingles on the roof are cracked, broken, or missing, there will undoubtedly be roof leaks, as water, whether from rain or snow, will seep easily into the roof. With regular roof inspection, you can see if some shingles are missing from your roof. You can hire a professional roofing company to check your roof and replace any damaged shingles.

4. Walking on the Roof 

Roofing materials are fragile and can easily be damaged by walking on the roof. When on the roof, you may step on cracked seals or weak shingles, causing them to break. This will inevitably cause roof leaks. Once again, if you notice any damage to your roof call a roofing company immediately to repair the problem as soon as possible.


As mentioned above, there are many common causes of roof leaks, from damaged flashings to missing shingles. It’s important to know what can cause roof leaks so you can prevent it from happening in the future. With proper maintenance of your roof, you should be able to avoid roof leaks and expensive repairs. However, if your roof is leaking, contact an experienced roofing company to inspect, repair or replace your roof.

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