Stop Ice Damming! 5 Ways to Protect Your Property.
How Recent Weather Changes Are Increasing the Risk of Ice Damming—and What You Can Do About It
Winter in Ontario is always a challenge, but the recent fluctuations in temperature have created an even bigger headache for homeowners and business owners: ice damming. As temperatures rise and fall, melting snow refreezes at the edges of roofs, leading to damaging ice dams that can cause water to seep into buildings, leading to costly repairs. If you've noticed icicles hanging from your gutters or ice buildup along your roofline, it's time to act.
In this article, we'll break down what ice damming is, why it's happening more frequently, and, most importantly, what you can do to prevent it from damaging your home or commercial property.
What Is Ice Damming?
Ice dams form when snow on a roof melts due to warm air escaping from the building, then refreezes at the colder edges of the roof. Over time, this cycle creates thick ice ridges that block proper drainage, forcing water under shingles and into the structure. The result? Leaks, water damage, mould growth, and potential structural issues.
Why Is Ice Damming Worse This Year?
Ontario has experienced more frequent temperature swings this winter, with mild days followed by deep freezes. This pattern accelerates ice dam formation because snow melts quickly but refreezes just as fast. Climate change and unpredictable winter weather patterns are making ice dams a bigger problem than ever before, affecting both residential and commercial properties.
Signs You Have an Ice Dam Problem
Not sure if your home or business is at risk? Here are some common warning signs:
- Large icicles hanging from your gutters
- Ice buildup along the roofline
- Water stains on ceilings or walls
- Peeling paint or damaged drywall
- Sudden drafts or cold spots inside
If you spot any of these issues, it’s essential to act fast before water damage spreads.
How to Prevent Ice Damming
The best way to deal with ice dams is to stop them before they start. Here’s how:
1. Improve Insulation and Ventilation
Ice dams are often a sign that heat is escaping from your home or business. Make sure your attic is well-insulated to keep warm air from rising through the roof. Proper ventilation will also help regulate temperatures and prevent uneven melting.
2. Keep Your Roof and Gutters Clear
Regularly remove snow from your roof using a roof rake or hire a professional to do it safely. Keeping gutters and downspouts clear will also help melted snow drain properly instead of refreezing along the edges.
3. Seal Air Leaks
Small gaps around chimneys, vents, and attic hatches can let warm air escape, contributing to ice dam formation. Sealing these leaks will help maintain a consistent roof temperature.
4. Install Heated Cables
Heated cables placed along the roof edge can help prevent ice buildup by keeping critical areas warm enough to allow proper drainage.
5. Check Your Roof for Damage
Regular roof inspections can help identify weak spots where leaks are more likely to occur. Fixing minor issues now can save you from major headaches later.
What to Do If You Already Have Ice Dams
If an ice dam has already formed, don’t panic—but do act quickly. Here’s what to do:
- Use a Roof Rake: Carefully remove excess snow from your roof to slow further melting.
- Apply Calcium Chloride: Sprinkle a de-icer on the affected areas to help melt the ice without damaging shingles (avoid using rock salt, as it can harm your roof and landscaping).
- Call a Professional: If the ice dam is large or already causing leaks, contact a roofing or ice dam removal expert to safely address the problem.
Does Insurance Cover Ice Damming Damage?
If an ice dam leads to interior water damage, your home or commercial insurance policy may provide coverage, depending on your specific policy terms. However, insurers expect property owners to take reasonable steps to prevent damage. If you’re unsure about your coverage, contact PetleyHare Insurance Brokers—we’re happy to review your policy and ensure you have the protection you need.
Stay Protected This Winter
Ice dams may be a growing problem, but with the right preventative measures, you can protect your home or business from costly damage. By improving insulation, keeping your roof clear, and addressing issues early, you can minimize your risk and enjoy a worry-free winter.
Have questions about your home or business insurance coverage? Contact PetleyHare Insurance Brokers today to ensure you’re fully protected from winter-related risks.