The short answer
How Melting Snow Creates Leaks
Snow on your roof acts like a sponge, holding water. As temperatures rise, that water travels downward. If your roof has cracked shingles, worn flashing, or gaps around vents, the water seeps through. Ice dams form when snow melts at the warmer upper roof, then refreezes at the colder eaves. That trapped water pushes up under the shingles.
The result is a slow drip inside your attic or a sudden stain on your ceiling. The longer the water sits, the more damage it does to your drywall, insulation, and wooden framing. Even a small leak can lead to rot and mold if you ignore it. That is why you want to catch it early.
- Check your attic for wet spots or drips
- Look for water stains on ceilings or walls
- Feel for damp insulation or wood
- Watch for peeling paint or bubbling drywall
- Notice any musty odors that appear after snow melts
- Clear snow from roof edges with a roof rake
What to Do Right After You Spot a Leak
First, place a bucket or container under the drip to catch water. Move furniture and valuables away from the area. Dry the area as much as you can with towels and a fan.
Next, take photos of the leak and any water stains for your records. Then, remove snow from the roof if it is safe to do so, using a roof rake or a broom. Do not climb onto a snowy roof, as that is dangerous. If you cannot reach the snow safely, leave it and focus on managing the water inside.
When to Call in the Pros
Sometimes the leak is obvious, like a drip right under a damaged shingle. Other times, the water travels along a rafter or pipe before dripping, so the source is hard to find. If you cannot locate the entry point, local water damage pros can do a moisture mapping inspection to trace the water path.
Professionals also help with structural drying, which is important after a leak. They use dehumidifiers and air movers to dry out hidden spaces like wall cavities and subfloors. This prevents mold and rot from taking hold. If the leak is large, you might need emergency water extraction to remove standing water.
Fixing the Roof to Stop Future Leaks
Once the immediate leak is handled, you need to repair the roof itself. A roofer can replace cracked or missing shingles, seal around vents and chimneys, and fix flashing. They can also install ice and water shield under the shingles for extra protection. Roof repair is not a do-it-yourself job for most homeowners.
If your roof is old or has widespread damage, a full replacement might be the better long-term solution. A new roof can handle snow and rain more effectively, reducing the risk of future leaks. Discuss your options with a roofing professional. They can assess the condition and recommend the right approach.
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Call Now (425) 407-5186Frequently asked questions
How do I know if my leak is from melting snow?
If the leak appears during or right after a thaw, melting snow is likely the cause. Look for water stains on ceilings or walls, especially near the roof edge. You might also see ice dams along the eaves, which are a strong sign.
Can I fix a snow leak myself?
You can dry the area and remove snow from the roof if it is safe. But finding the exact entry point and repairing the roof usually requires a professional. Roof work is dangerous, and water damage can hide in walls, so let the pros handle it.
Will my insurance cover snow leak damage?
Policies vary, and your insurer decides what is covered. Some policies cover water damage from melting snow, while others exclude it if the roof was not maintained. Check your policy and document the damage with photos. Then contact your insurance company to ask.