02/09/2026
What is an ice dam? âď¸
An ice dam forms when heat from inside your home escapes into the attic and warms the roof, causing snow to melt. This melted water runs down the roof and refreezes at the colder eaves (edges), creating a ridge of ice. This ice ridge blocks further melting snow from draining off the roof properly.
Why is this a problem?
When water canât drain, it pools behind the ice dam and can seep under shingles and into your homeâs structure. This can lead to:
đ Roof damage
Leaks in ceilings and walls
Damage to insulation and interior finishes
Mold and mildew growth
What causes ice damming?
Poor attic insulation and ventilation, which allows heat to warm the roof unevenly
Significant snow accumulation on the roof
Cycles of daytime melting and nighttime freezing
How can you prevent ice dams? đ§°
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Improve attic insulation and ventilation to keep your roof cold and prevent melting.
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Remove snow safely from your roof using roof rakes or hire a professional to avoid injury or roof damage.
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Consider installing ice and water shields under shingles or electric heating cables along roof edges to prevent ice buildup.
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Inspect your roof regularly for signs of damage or ice accumulation, especially after heavy snowfall.
đŤ¨If you suspect ice damming or notice water stains inside your home, contact a roofing professional immediately. Early action can prevent costly repairs and protect your homeâs structural integrity. đ ď¸
