Chimney Stains? Here’s What They Mean

Have you started noticing stains on your chimney? Not only do these stains affect the way your chimney looks, but they can also be indicative of larger structural problems. Here are some of the stains you might notice on your chimney, what they mean, and how to prevent them by waterproofing your chimney.

Chimney Leak Repair Johns Creek, GAWhite/Grey Stains

A powdery white or grey stain on your chimney is usually indicative of efflorescence. Efflorescence forms when water evaporates, leaving a small amount of minerals on your chimney. If you live in an area that gets a lot of rain or snow, some amount of efflorescence is totally normal. However, if you are noticing large quantities of efflorescence or efflorescence on the interior of your chimney, this could mean that water is making its way into the brick and mortar. Over time, this water can cause leaks and other structural damage in your chimney. It’s very important to address the problem before it gets worse.

Red Stains

Red stains are usually rust forming on the side of your chimney. This only happens with metal chimneys or chimneys that have metal caps. Rust can start to form as a result of water damage. Rusty chimneys often result in leaks, so they should be addressed right away.

Green Stains

Green stains are usually caused by algae or mold buildup in your chimney. Algae and mold can start to form when water gets into the cracks between bricks in your chimney. This is because they tend to grow in tight, moist environments. Large amounts of algae and mold in your chimney can be harmful to your health. Additionally, they can be indicative of larger structural problems in your chimney.

Black Stains

Most black stains are a result of soot or creosote buildup. While a small amount of soot is normal for any fireplace, too much is usually an indication that you are not cleaning it enough. Soot on the outside of your chimney can result from a draft in the fireplace that is causing the fire to burn abnormally.

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Creosote is a byproduct of wood-burning fires, and it can be very dangerous in large quantities. Creosote is highly flammable, and it also can irritate your respiratory system. You can remove small amounts of creosote on your own by sweeping after each fire. However, you will need professional help to clean creosote that has hardened. Regular professional chimney cleanings are the best way to prevent black staining on your chimney.

Stains on your chimney are not something to ignore, as they can be indicative of larger problems. Scheduling chimney inspections and professional cleanings at least once per year can help prevent these chimney stains from happening. Are you in need of professional chimney services in the Atlanta area? Chimney Solutions can help. Give us a call at (770)-285-0711 or contact us online today to schedule an appointment.

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