Why does chimney flashing leak?

Causes of Flashing Leaks

When water begins to leak from your chimney, it can be a cause for concern. You may have a damaged chimney flashing. It can be caused by a number of different factors. If you have a chimney flashing leak, it’s important to address the problem as soon as possible to prevent further damage.

Improper Installation or Cheap Material

Flashing leaks can be caused by a variety of factors, the most common of which is improper installation. If the chimney flashing isn’t installed properly, it can create a gap where water can seep in. Another common cause of flashing leaks is faulty materials. If the flashing isn’t made from a durable material, it can quickly corrode and break down, leading to leaks. Additionally, incorrect placement of the flashing can also lead to problems. If it’s not placed properly against the roof or wall, water can easily find its way in.

The use of a professional chimney repair is highly recommended in order to avoid any potential problems with the installation of a chimney flashing. Because it is an essential part of a chimney installation, and if it is not installed correctly, it can lead to water infiltration and other issues. By hiring a professional chimney repair, you can be sure that the flashing will be installed properly and that any other necessary repairs will be made as well. Brick and Stone contractors often provide different types of chimney services so you can find the best one to perform the job.

Damaged or Missing Sealant

One common cause of chimney flashing leaks is damaged or missing sealant. When the sealant around a roof flashing is not intact, water can seep through the cracks and cause a leak. Improperly pitched roof valleys, for example, can cause water to accumulate and flow under the flashing and eventually leak through.

Rust and Corrosion

Rust and corrosion can occur when the metal flashing is exposed to weathering elements like rain, snow, or ice. Over time, the metal will corrode and weaken, which can lead to cracks and holes in the flashing.

Effects of a Flashing Leak

As we all know, flashings are usually installed to keep rain, snow, and other debris from entering the chimney. If the flashing leaks, water can quickly become trapped and cause extensive damage to the chimney, fireplace, and surrounding area.

Water Damage to the Roof

When a roof experiences a flashing leak, water can damage the roof deck, insulation, and even the structure. If not addressed quickly, this can lead to extensive and costly repairs. It’s important to have a qualified chimney repair inspect your chimney regularly to catch any potential problems before they become too serious.

Damage to the Fireplace

A chimney flashing leak can cause extensive damage to the fireplace and surrounding areas. The water can damage the mortar between the bricks, causing them to crumble and fall out. The water can also rust the metal components of the fireplace, causing them to deteriorate. If left untreated, a chimney flashing leak can cause extensive and costly damage to the fireplace.

How to Fix Damaged Chimney Flashing?

If you notice a chimney flashing leak, do not try to fix it yourself. Chimney flashing is a critical part of the chimney system and should be repaired by a professional chimney repair service. A leaking flashing can cause extensive damage to your home and may even lead to a fire.

When you call a professional chimney repair service, they will first determine the source of the leak. They may need to remove the flashing in order to fix it properly. Once the repair is complete, they will reattach the flashing and ensure that it is properly sealed.