Get Started
leak on white ceiling
leak on white ceiling

Leaking Winter Roof: How to Identify the Problem and Fix It

As the winter months approach, homeowners need to be prepared for a common and potentially costly issue: roof leaks. Winter can be particularly harsh on your roof, as the combination of snow, ice, freezing temperatures, and fluctuating weather conditions can create the perfect storm for roof problems. But what causes a roof leak in winter, and how can you stop it?

We’re here to help you understand:

  • The causes of roof leaks in the winter
  • What to do when you find a roof leak
  • Essential tips for preparing your roof to withstand the winter season

Keep reading to stop roof leaks once and for all!

What Causes Roof Leaks in the Winter?

Before you can start repairing winter roof leaks, you need to know what is causing your leaky roof in the first place! Here are some common causes of roof leaks during the cold months:

Ice Dams

Ice dams are a leading cause of roof leaks during the winter. They form when snow on your roof melts due to rising temperatures or heat escaping from your home’s interior. The melted snow then flows down your roof until it reaches the colder eaves, where it refreezes. Over time, this ice buildup can create a dam that prevents further snowmelt from draining off the roof.

As the dam grows, water can back up under your shingles, leading to leaks and water damage inside your home. The pressure from the expanding ice can also damage roofing materials and structural components.

Damaged Shingles

Roof shingles can be susceptible to damage during the winter, especially if they are already in poor condition. The freezing and thawing cycles can cause shingles to crack, curl, or become loose. When shingles are compromised, they no longer provide an effective barrier against water infiltration.

Flashing Issues

Flashing is the material installed around roof penetrations such as chimneys, vents, and skylights to prevent water from seeping in. Over time, flashing can deteriorate or become damaged, allowing water to enter your home. In winter, when freezing temperatures are common, any small gaps or cracks in flashing can lead to significant leaks.


Condensation can be a less obvious but equally problematic cause of winter roof leaks. Warm air from your home can rise into your attic and come into contact with a cold roof deck, causing the moisture in the air to condense. This condensed moisture can then drip down into your living spaces, causing ceiling stains and potential structural damage.

What to Do When You Find a Roof Leak: 5 Steps

Discovering a roof leak in the winter can be a stressful experience, but taking prompt action can help minimize damage. Here’s what to do when you find a roof leak:

1) Safety First 🦺

roofing constructor at a construction site

Safety should be your top priority. If you discover a leak, turn off electricity to the affected area to avoid electrical hazards. Place buckets or containers to catch dripping water and protect your belongings.

2) Identify the Source 🔍

Try to identify the source of the leak from inside your home. Trace the path of water to its entry point on the ceiling. This can help you pinpoint the area of the roof that needs attention.

3) Clear Snow and Ice ❄️

If it’s safe to do so, carefully remove any snow and ice buildup from your roof to prevent further leakage. Use a roof rake or hire a professional for this task to avoid injury or further damage to your roof.

4) Temporarily Seal the Leak 💧

If you can access the source of the leak safely, you may be able to temporarily seal it with roofing cement or a waterproof sealant. This can help reduce the flow of water until a professional can make permanent repairs.

5) Contact a Professional Roofer 👷‍♀️

Roof repairs are best left to the experts, especially in winter conditions. Contact a qualified roofing contractor to assess the damage and provide necessary repairs. They can also determine if any underlying issues, such as damaged insulation or wood rot, need attention.

Tips for Preparing Your Roof for Winter

The key to preventing roof leaks in the winter is proper preparation. Here are some essential tips to ensure your roof is ready for the colder months:

  • Schedule a Roof Inspection – Before winter arrives, schedule a professional roof inspection. A certified roofer can identify any existing issues and recommend necessary repairs or maintenance. Regular inspections can catch potential problems before they become major leaks.
  • Clean Your Gutters – Clogged gutters can contribute to ice dam formation. Clear leaves, debris, and other obstructions from your gutters to ensure proper water drainage. You should also ensure that your downspouts direct water away from your foundation.
  • Install Roof and Attic Insulation – Proper insulation can help regulate the temperature in your attic and prevent ice dams from forming. Adequate insulation can also reduce heat loss, saving you on energy bills. Consult with an insulation professional to determine the right insulation for your attic and roof.
  • Ventilate Your Attic – Proper attic ventilation is crucial for maintaining a consistent temperature on your roof deck. This helps prevent ice dams and condensation. Ensure that your attic has sufficient intake and exhaust vents to allow air to flow freely.
  • Repair Flashing and Damaged Shingles – Inspect your roof’s flashing, and replace or repair any damaged areas. Check for loose or missing shingles and have them fixed promptly. A well-maintained roof is less likely to develop leaks.
  • Trim Overhanging Branches – Overhanging tree branches can damage your roof during winter storms. Trim any branches that could potentially fall onto your roof during heavy snow or ice.
  • Consider Heated Roofing Systems – For those living in extremely cold climates, heated roofing systems, such as heat cables or heated roof panels, can help prevent ice dams by melting snow and ice on your roof.

Get Professional Help With Your Roof

Winter can be tough on your roof, but with the right preparation and proactive maintenance, you can minimize the risk of roof leaks and water damage. At Melo Roofing, we have the experience to help your roof thrive, no matter what the season is. From repairs to a full roof replacement, we’ll take care of all of your roofing needs. Contact us today to receive an estimate on your roofing project!

The Roofing Company That Cares

Get Started