Common Causes of Chimney Leaks

Are you experiencing leaking from your chimney at home? This can be inconvenient and stressful to deal with as a homeowner. Luckily, there are many different possible causes, and some are not severe or expensive to deal with. There are five main reasons that you may be experiencing chimney leaks. 

Top 5 Reasons Your Chimney Is Leaking

There are issues ranging from severe to minor, we will start with the most severe of the causes. 

Breaking Down Mortar or Bricks

This potential cause can range in severity depending on how early you caught it. It can also be exacerbated by extreme storm conditions or a frost and thaw cycle. Extreme rain, wind, or snow can cause normal wear and tear to break down your otherwise strong foundation of your chimney. While normal wear and tear is bound to happen, bad weather can make it worse. 

Another contributing factor to structural issues and cracks is how often your chimney experiences extreme temperatures. This is especially true if a freeze cycle comes right after a heavy rainstorm. If water finds its way into any crack – small or large – it can freeze causing the crack to expand. As the temperatures rise and the ice thaws, it causes the cracks to contract. This can make for larger cracks and even leaks as they get large enough.

Flashing Isn’t Watertight

Another frequent cause of chimney leaks is your roof flashing, losing its watertight seal. Flashing is installed with the roof and your chimney comes together. This is easy to miss since homeowners aren’t typically on the roof looking for issues. Overtime, flashing can break down and lose its waterproofing. Luckily this can be a quick and easy fix. 

Cracked or Damaged Chimney Crown

At the top of your chimney, there is a cement surface that is called a chimney crown. This serves as an important guard against moisture and debris getting inside of your chimney. While cement is strong and durable, over time it can develop cracks that need to be repaired to ensure a watertight chimney. 

Chimney Chase Top Pan Issues

Also vital in keeping water out is a top pan in the chimney chase. It’s not an extremely durable piece and it isn’t uncommon for water to pool up on the pan. If the water sits for a while, rust can occur and cause holes to form and allow water to leak.

Missing Chimney Cap

Lastly, your chimney cap is the first line of defense between the elements and the inside of your home. It blocks rain, snow, leaves, and other debris. This is a simple fix for chimney professionals to perform for you as well. 

Chimney Leaks? Call Fire N Stone Today

Fire N Stone is a full-service chimney service that can help if you are experiencing chimney leaks. We’re the local, trusted team to call for assistance. No matter the severity of your spalling, our experts can handle it. We also support our clients with routine chimney maintenance, masonry repair, or even outdoor kitchen installation. We never subcontract our work, which means you work with the same trusted team the entire time.