Water is  your chimney’s number one enemy.  When it gets inside…it causes all kinds of trouble – both short-term and long-term.  There are ways to safely avoid water damage.  Call the professionals at Mr. Smokestack for help today!

How does water harm your chimney?


Not only does mold harm your chimney, but also if it is not caught in time it can spread to the foundation of your home and the air supply.  This can be dangerous for anyone who has respiratory problems inside the home.  Mold can grow in as little as one to tow days, so if you notice any cracks in your chimney’s structure you should have it checked out.  Also, because mold has all colors and textures, you should have it checked out if you see any unusual growths.

Rust and Deterioration

Any part of your chimney or fireplace that is made of metal can rust if there is enough water to come into contact with it.  Also, the freezing and thawing of the water that sits will crack the mortar that holds your chimney together.  This will then cause cracks for water to collect, or allow the structure to overtime crumble.

Damaged Flashing

If winds are strong enough, they can rip the flashing off the outside of your chimney.  If this becomes missing or loose, water will also be able to make its way inside of your roof.

Can you prevent water damage?

While there is no way to prevent water damage 100%, but there are precautions that you can take to lessen the amount and thus the damage.  First, you should have your yearly inspection to make sure there is nothing broken or missing that you cannot see, such as cracks in the bricks.  Next, you want to be sure that you have a chimney cap, and that it is properly installed. The cap diverts water away from your chimney.

Lastly, have your chimney waterproofed.  This is a quick process done after your chimney sweep.  However, the sealant sprayed on the outside of the chimney will need at least six hours to dry, so make sure that you choose a dry day in the forecast.  If you live in an extremely wet environment, you may look into having two coats applied for extra protection.