What Is Ice Dam Formation and How Does It Damage Your Roof?

Ice dams start when heat from your attic warms the roof, melting snow from the bottom. The melted water runs down the slope until it reaches the colder overhang, where it freezes again. Over time, that refrozen layer builds into a ridge, blocking further drainage.

The key is uneven roof temperature. Warm sections above living spaces melt snow, while cold eaves stay below freezing. This temperature difference is what sets the stage for an ice dam. Poor attic insulation and ventilation often make the problem worse, as heat escapes more readily.

Look for icicles hanging from the eaves, especially if they form in a line. That line often marks the edge of the dam. Also check for water stains on ceilings or walls near exterior corners, which may indicate a leak already happening.

You might notice a cold draft in the attic or see frost on the underside of the roof deck. These clues suggest heat loss and poor ventilation, both of which encourage ice dam formation. If you spot any of these, take action before the next snowfall.

If an ice dam has already caused water to enter your home, you need help beyond simple prevention. The pros can safely remove ice and snow without harming the roof, and they can assess the extent of water damage. They also know how to dry out affected areas to prevent mold.

For thorough drying and cleanup after a leak, local water damage pros have the equipment and experience. They can document the damage for your insurance claim and help with structural repairs if needed. Acting quickly limits the damage and makes the repair process smoother.

• Roof leak water damage cleanup
• Emergency roof tarping
• Water damage assessment
• Structural repairs after damage
• Water damage documentation