Welcome back to our Quick Q series, where we give fast answers to your most pressing questions! Today we are addressing one of the sources of winter water damage and mold: an ice dam. Unconcerned because you don’t live in one of the colder states? For better or worse, most areas in the US will experience freezing weather at least a few times during the winter. Freezing means ice, and ice can mean an ice dam.

What are ice dams?

Ice dams are simply a ridge of ice built up at the edge of a roof. This prevents water from rain or melting ice and snow from draining away. Essentially, it does the job of a dam for a river or lake, but on top of your house! This can cause an additional water that accumulates to flow backwards behind the “dam.” The improper flow causes it to get inside and create damage to in your attic, roof, walls, or ceiling.

They begin to form when the temperature of your roof is varied across its surface. This allows the snow and ice at the top of the roof to melt, while the liquids at the bottom freeze. It is only rarely that ice dams are caused by the sun’s heat, so adequate insulation usually prevents this. Newer homes are less likely to have an ice dam, but it can still happen!

If you are having problems with water damage from the top levels of your home, contact the Flood Medix! Our expert team is always here to help.