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3 Ways Water Ruins Chimneys

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Rainstorms can cause havoc in your home in a matter of minutes, whether it is flooding or the high winds that come along that tear things apart. When your chimney comes into contact with water it will start causing harm. To talk to a professional about keeping your chimney safe and dry call Guaranteed Chimney Service.


The number one problem water in a chimney will cause is mold. When this happens it spreads through your chimney, but can also spread to the rest of your home’s foundation and your air supply. This can be dangerous for anyone who has breathing problems or other health conditions. Mold can grow in 24 to 48 hours in any crack that is big enough to hold water. Since mold has a variety of colors and textures, if you think you see any growing you should call for an inspection.

Rust and Deterioration

Any piece of metal in your chimney has the ability to rust if it has enough water reaching it. Also when the seasons change, the constant freezing and thawing of the water can cause more cracks in the brick and mortar. If this is not taken care of the structure could begin to crumble over time.

Damaged Flashing

If storm winds are strong enough, they can rip the flashing off the outside of your chimney. If this becomes missing or loose, precipitation will be able to get into your chimney and your roof.

Preventing Water Damage

You cannot completely prevent water damage, but there are things you can do to lessen the chance. First, you should always make sure that you have the recommended inspections to make sure all parts are in working order. You should also look into getting a chimney cap. These not only keep water from getting inside your chimney, but animals too. However, if these are not properly installed they can mess up airflow and cause other harm. This is why you should always have an experienced technician install them.

You should also have your chimney waterproofed. This can be done on any dry day after your chimney sweeping. If you live in an exceptionally wet environment, you might look into having two coats of sealant applied for extra protection.