Knowledge for today - understanding ice dams


Tip of the Day: Understanding Ice Dams – Causes, Removal, and Prevention


Living in Upstate New York, ice dams are an all-too-familiar winter problem. These pesky barriers of ice that form along the edges of your roof can lead to significant damage if left unaddressed. Let’s dive into what causes ice dams, how to get rid of them, and what you can do to prevent them.


Please understand that if you have an ice dam, there is a good chance that water is intruding your roof. It depends on how big the overhang of the roof is. You only see it when it gets really bad or if you have an ice dam in a valley on your roof - this is when it starts dripping in your house. If you see brown in the ice cycles hanging- this means the water is contacting your wood.


What Causes Ice Dams?


Ice dams form when snow on your roof melts due to heat escaping from your home or warming from the sun. The melted snow flows down your roof and refreezes when it reaches the colder eaves or gutters. Over time, this creates a thick ridge of ice that blocks additional melting snow from draining properly. The water backs up behind the dam and can seep under shingles, causing water damage to your home.


Key Factors Leading to Ice Dams:

★ Heat Loss: Warm air escaping from your home through the attic or roof heats the snow, causing it to melt.

★ Solar Radiation: Even on frigid days, sunlight can warm parts of your roof, leading to snowmelt.

★ Inconsistent Roof Temperatures: Areas near the peak of your roof may be warm while the edges remain cold, creating the perfect environment for ice dams to form.


How to Get Rid of Ice Dams


If you already have ice dams on your roof, it’s crucial to address them before they cause damage. Here are some effective methods:

1. Manually Remove Snow:

Use a roof rake with a long handle to safely remove snow from the edges of your roof. Be sure to stay on the ground to avoid injury.

2. Apply Calcium Chloride:

Calcium chloride (not rock salt) can help melt the ice. Fill a nylon stocking with the chemical and place it vertically across the ice dam. This creates a channel for water to drain.

3. Hire a Professional:

If the ice dams are severe or difficult to access, it’s best to call in an expert. Professionals use steamers or other tools to safely remove ice without damaging your roof.


How to Prevent Ice Dams


While ice dams caused by sunlight might be unavoidable, many can be prevented by addressing heat loss and ensuring proper roof maintenance.

1. Improve Attic Insulation:

Heat escaping from your home into the attic is one of the biggest culprits. Adequate insulation keeps warm air inside, reducing snowmelt on the roof.

2. Seal Air Leaks:

Look for gaps around vents, chimneys, or light fixtures that allow warm air to escape into the attic. Use caulk or weather stripping to seal them.

3. Ventilate the Attic:

Proper ventilation keeps your attic cool by circulating cold air from outside, which helps maintain a consistent roof temperature.

4. Remove Snow Early:

Use a roof rake to remove snow after a heavy snowfall. By staying ahead of snow buildup, you can reduce the chances of ice dams forming.

5. Install Ice and Water Shield:

This waterproof barrier is placed under shingles during roof installation and can help protect against water intrusion caused by ice dams.


When Ice Dams Can’t Be Prevented


Even with the best insulation and preparation, ice dams may still form when the sun melts snow unevenly. In these cases:

★ Be Proactive: Monitor your roof regularly during the winter, especially after sunny days.

★ Use Preventative Tools: Consider installing heated cables along the edges of your roof to prevent ice buildup.


Final Thoughts


Ice dams are a common winter challenge for homeowners in Kirkville-Minoa and beyond. By understanding their causes and implementing prevention measures, you can protect your home from unnecessary damage. And remember, if ice dams get out of hand, don’t hesitate to call in a professional. A little maintenance now can save you from costly repairs later. If you have a new roof with ice and water shield, you might be in the clear—but why risk it?


Does this or is this happening on your roof? Have you found a solution, or what was it? Please comment below.



Products to use to help with your problem.

Roof heat cable


https://www.amazon.com/dp/B08DHV95X7/?tag=Diybyrichard-20


 A hose


https://www.amazon.com/dp/B0C8PJKRFT/?tag=Diybyrichard-20


Roof melt tablets


https://www.amazon.com/dp/B0DMWQQZJW/?tag=Diybyrichard-20


As an Amazon affiliate I earn commissions from qualifying purchases 







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