long icicles on the roof

Ice Dam Prevention: 5 Tips for Handy Homeowners

Bondoc Team

Posted By: Bondoc Team

Posted Date


As winter blankets our homes with a layer of snow and ice, they often become vulnerable to a common winter woe: ice dams. These troublesome formations not only pose a threat to your roof’s structural integrity but can also lead to costly water damage within your home.

But what exactly IS an ice dam? And is it an unavoidable side effect of winter weather, or are there ice dam prevention steps that you can take to help keep your home safe and in working order? If you’re searching for answers, you’ve come to the right place!

In this guide, we’ll delve into:

  • Why ice dams form in the first place
  • Safe methods for removal
  • Effective prevention strategies

If you are ready to tackle your ice dam problems once and for all, keep reading!

Understanding Ice Dams

Ice dams are ridge-like accumulations of ice that form at the edge of a roof, preventing melted snow from properly draining off the roof’s surface. This stagnant water can seep beneath shingles and infiltrate your home, causing water damage to walls, ceilings, and insulation. Understanding the factors contributing to ice dam formation is key to preventing its occurrence.

How Ice Dams Form

Ice dams develop as a result of a combination of factors, including:

  • ❄️ Snow Accumulation: Heavy snowfall creates a thick layer of snow on your roof, acting as insulation that retains heat from your home’s interior.
  • 🌡️ Roof Temperature Variation: Uneven roof temperatures cause snow to melt at different rates. Warm air escaping from your home’s interior can lead to warmer sections of the roof, promoting snowmelt.
  • 🥶 Freezing Temperatures: Cold outdoor temperatures cause melted snow to refreeze at the roof’s overhang, forming a barrier of ice.
  • 🌬️ Inadequate Roof Ventilation and Insulation: Poor ventilation and insulation in the attic can cause warm air to accumulate in the attic space, further accelerating snowmelt.

The Dangers of Ice Dams

All of those icicles dangling from your roof line may look pretty, but don’t be fooled! Ice dams can have several detrimental effects, including:

  • Structural Damage: As ice dams grow, the weight of the ice can strain your roof’s structure, potentially leading to structural damage.
  • Water Infiltration: Stagnant water behind the ice dam can seep into your home, causing water stains, peeling paint, and even mold growth.
  • Energy Loss: Inadequate attic insulation and ventilation, often associated with ice dam issues, can contribute to heat loss, leading to higher energy bills.

Safe Removal of Ice Dams

While it’s crucial to prevent ice dams from forming in the first place, immediate action is necessary if you notice their presence. However, it’s important to emphasize that removing ice dams can be hazardous and is best left to professionals. If you decide to undertake this task, follow these safety precautions:

  • Using a Roof Rake: A roof rake with a long extension handle can help you gently remove snow from the roof’s edge, preventing the formation of ice dams.
  • Calcium Chloride or Ice Melt: Sprinkle calcium chloride or an ice melt product in a nylon stocking onto the ice dam. This will create channels for water to flow and aid in melting the ice. Avoid using rock salt, as it can damage your roof and gutters.
  • Hot Water Application: Pouring warm (not boiling) water onto the ice dam can help melt it, but this method should be used with caution to avoid ice refreezing.
  • Professional Assistance: Given the potential risks and complexities involved in ice dam removal, it’s advisable to hire professionals experienced in safe removal techniques. They possess the necessary tools, expertise, and safety gear to effectively address the issue without causing further damage to your roof.

5 Tips for Preventing Ice Dams

The old adage “prevention is better than cure” holds true when it comes to ice dams. By implementing these preventive measures, you can significantly reduce the likelihood of ice dam formation:

1) Attic Insulation and Ventilation

A well-insulated and properly ventilated attic is essential for maintaining a consistent roof temperature and preventing ice dams. Here’s what you can do:

  • Insulation: Ensure your attic is well-insulated to prevent heat from escaping your living space and warming the roof.
  • Ventilation: Proper ventilation allows cold air to flow through the attic, preventing warm air accumulation that accelerates snowmelt.

2) Sealing Air Leaks

Identify and seal any gaps, cracks, or holes in your attic’s ceiling and walls. This prevents warm air from escaping into the attic space and causing uneven snowmelt.

3) Roof and Gutter Maintenance

Your gutter system is an essential part of ice dam prevention. When it is clogged with debris, it stops water from flowing off of your roof properly, which can lead to roof ice dams. Keep your roof and gutters in tip-top shape by:

  • Roof Raking: Regularly remove snow from your roof using a roof rake to minimize the accumulation of snow and prevent ice dams.
  • Gutter Cleaning: Keep gutters and downspouts clear of debris to ensure proper water drainage, reducing the chances of ice dams forming.

4) Heat Cables or Roof De-Icing Systems

Installing heat cables along the roof’s edge or a roof de-icing system can help prevent an ice dam from forming by keeping the roof’s edge slightly warmer and promoting proper drainage.

5) Snow Removal Services

Consider hiring professional snow removal services after a heavy snowfall to prevent excessive snow buildup on your roof. This will help to stop ice dam damage at the source.

Stopping Ice Dam Problems at the Source

When it comes to taking care of ice dams, the key is to stop them before they start. At Bondoc Roofing, we can help you do just that. Our team of roofing experts can get to the heart of why ice dams are forming on your roof shingles and create a personalized solution that keeps your roof ice-free all year long. Contact us today to set up your free inspection!

Our Recent Articles

We've Got You Covered.

Looking forward to serving you to the best of our abilities.

homeowner happily relaxes in home during full roof replacement by Bondoc roofing