Ice Dams are a leading contributor of interior water damage

Pretty Icicles: Ice Dam’s Hiding in Plain Sight

Seeing pretty icicles on the side of your home is something that many of us like to see. However, if the icicles are on the corners of your home and they have become very large in size then this may be call for concern. You might have a damaged roof and water could be getting inside your home! It is important to recognize an ice dam that is hanging from your roof because they can cause a lot of damage.

This article is going to tell you what an ice dam is, what happens when you have one, and how it affects your home.

Ice Dams Are A Leading Contributor Of Interior Water Damage

What is an Ice Dam?

An ice dam happens when the roof of your house is not properly ventilated. If the snow melts from the top and travels down to the side, then you know the top of your roof warm. However, if it freezes once it travels to the side of your roof and does not move – then you have a problem.

What Happens If You Have an Ice Dam?

Once this ice forms a little bit, it can get bigger and bigger, which means the rest of the melting snow from the top of the roof cannot fall off the edge. It can accumulate on the shingles and begin to seep its way through the roof, attic, and into your home. You can just imagine what the potential for interior water damage may be going at your home.

The Water Is In, Now What?

First off, the frozen water on your roof. Frozen water tends to expand 9-10%, so it can damage the outside of your home. When it begins to melt, the moisture problems begin as it damages your roof completely.

Once the water enters your home, you need to act fast in order to stop it from causing major damage. Having water in your walls and in your ceilings allows mildew to begin to grow. If you never notice the mildew then that can be a major issue because it is not healthy for people to breathe in the bacteria that comes with it. This can give many people respiratory problems if they are breathing it in for long periods of time without even realizing it.

Your home’s insulation can also be damaged from an ice dam. The air in your attic is going to be filled with moisture, so once that are begins to warm up, it can eat away at the insulation. This means that the insulation can be less effective, so more mildew, mold, and even pests are going to find its way into your home.

Lastly, moisture buildup can happen if you have an ice dam. Moisture buildup is recognized by looking at your window. If you see a lot of condensation and the window is wet on the surface, then you might want to have your roof looked at. This is an obvious sign that something is wrong with the ventilation in your home and it is important to get it looked at immediately. Otherwise, the moisture buildup could lead to mold and mildew making its way into your windows.


Even though everyone likes to see a pretty icicle during the wintertime, keep an eye out for large ones on the corner of your house. If you do see them starting to get bigger then call a professional to come and take a look. Do not try to go up there and knock them down by yourself because you can damage your roof and yourself by doing that. Leave it to the professionals because a damaged roof is a lot of work to fix again.


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