What are the Common Causes of Roof Leaks?
Most people don't know much about roofing. In fact, many people don't even realize that there is more to roofing than just putting shingles on a roof. One of the most common problems with roofs is leaks. Roof leaks can be caused by many different things, and they can occur in any part of the roof. So, what are some of the causes of roof leaks?
There are many different factors that can cause a roof to leak, and it's important for homeowners to be aware of these factors so they can take steps to prevent them from happening. So, what are the reasons and causes why roofs are leaking?
Here are The Most Common Causes of Roof Leaks:
1. Clogged Gutters and Eavestroughs
Clogged gutters are one of the most common causes of roof leaks. When gutters and eavestroughs fill with leaves and debris, water can't drain away. It backs up under the roof edge and leaks into the fascia, roof deck and walls.
The best prevention is to keep your gutters and eavestroughs clear and free of debris so water can properly drain away from your home. Regular eavestrough cleaning and maintenance is essential to avoid trapped water.
2. Broken Shingles
If a shingle is broken or missing, it can allow water to seep through the roof and cause a leak.
It's important to keep an eye on your roof for any signs of damage and to schedule timely residential roof repairs to replace broken or cracked shingles as soon as possible.
3. Clogged Roof Drains
Roof drains are designed to help carry water away from the roof and prevent leaks. If they become clogged, it can cause water to back up and leak into your home or commercial structure.
It's important to keep the roof drains clear so that the water can properly drain off of your roof. For commercial buildings, check out our guide on flat roof repair and maintenance in Toronto to ensure proper drainage systems.
4. Ice Dams
When snow accumulates on the roof, it can melt and run down the roof until it reaches the eaves. If the temperature is below freezing, the water will freeze and form an ice dam.
The ice dam blocks meltwater from draining off the roof, so it backs up under the shingles and leaks into your home. After heavy snowfalls, use a roof rake to remove heavy snow from the eaves, leaving 1–2 inches to protect the shingles. Learn more in our guide on how proper attic ventilation prevents ice dams in Ontario homes.
5. Hail Damage
Hail can damage your roof and cause leaks. The size of the hailstone can determine the amount of damage that it causes. If you suspect severe weather impact, getting a professional roof inspection and leak assessment immediately will help prevent minor damage from worsening.
6. Improperly Installed or Worn Valley Flashing
Improperly installed or worn valley flashing lets water leak into your home, since valleys carry more water than any other part of the roof. Keeping valley flashing in good condition is a very important part of roof maintenance.
7. Damaged Roof Deck
If you have a damaged roof deck, it can cause severe roof leaks. A damaged roof deck can be caused by wind, hail, or long-term moisture accumulation. If wood rot is present, a complete roof replacement service may be required to restore structural integrity.
8. Poorly Installed Roof
If your roof wasn't installed properly, it could be the main cause of recurring leaks. It's crucial to hire a certified local contractor. Trust expert GTA & Oakville roofing contractors to guarantee high-quality workmanship backed by warranty.
9. Roof Vents
If your roof has vents, they can also cause leaks. Vents can be damaged by wind, hail, or rain. They can also become clogged with debris, which will prevent them from doing their job properly. It's important to check the seals and flashing around your roof vents regularly. If they're cracked or loose, have a roofer repair or replace the vent boot and flashing; caulk is only a temporary stopgap, not a lasting fix.
10. Condensation Forming in Your Attic
If you have condensation in your attic, it can cause your roof to leak. Condensation is caused by warm air meeting the cold air. The best way to prevent it is to seal air leaks from the living space (around light fixtures, attic hatches and plumbing stacks), keep your insulation topped up, and make sure the attic is properly ventilated so moist air can escape.
11. Walking on Your Roof
It's never a good idea to walk on your roof, especially if it's wet. Walking on your roof can cause the shingles to break and/or tear. This can create a place for water to seep through and leak into your home.
12. Poor Maintenance
If you don't regularly maintain your roof, it can eventually start to leak. This is especially true for commercial structures or flat roofs, which require dedicated commercial roofing preventative maintenance. A good rule of thumb is to have your roof inspected at least once a year (ideally spring), plus after any major storm.
Conclusion
Your roof is essential to the protection of your home. A roof that leaks can cause extensive and expensive damage. There are many things that can cause a roof to leak, and it's important to know what they are so you can be proactive about fixing them. If you're not sure how to fix a roof leak, don't hesitate to contact Ontario Tech Roofing today. Our certified roofing experts will diagnose the problem and provide a lasting solution!
Get Your Free Roof Estimate
Ready to protect your home? Ontario Tech Roofing has served homeowners across the GTA since 1998. Book your free estimate or call us at 905-616-4408.