Everything You Need To Know About Chimney Liner Damage

Chimney liners protect the walls of your chimney from the high temperature and corrosive byproducts of the combustion process. It serves as a protective layer between the chimney walls and the flue gases that pass through them.

A properly functioning liner ensures the safety of your home by preventing chimney fires and carbon monoxide poisoning. It helps to contain the hot gases the fire generates, creating a safe temperature for your chimney walls.

Unfortunately, damaged liners can cause serious problems, including a fire hazard, decreased efficiency, and even carbon monoxide poisoning. Read on to unearth everything you need to know about chimney liner damage and a few steps to follow for effective repair.

What Causes Chimney Liner Damage?

Common triggers for chimney liner damage include natural wear and tear, exposure to moisture, and exposure to high temperatures. Natural wear and tear can cause the lining to weaken over time, eventually leading to deterioration. The combustion byproducts are highly acidic and can gradually weaken the lining with time.

Moisture can also penetrate the lining, which triggers rust and corrosion. This is especially common in humid climates, or if water enters your chimney due to improper flashing installation or an improperly sealed chimney cap. A chimney cap prevents the penetration of moisture into the flue. The moisture can seep in if there's no cap, resulting in condensation and severe water damage.

Animals that build nests in the chimney can also cause damage to the lining and obstruct flue gases from escaping. These animals can also cause a fire hazard due to the build-up of combustible materials in the chimney. The risk of chimney fires increases significantly if the lining is damaged.

How Do You Spot Liner Damage?

An excellent way to tell if your chimney liner is damaged is a strong smell of smoke inside the house. This is a sign that the fumes from the fireplace cannot escape properly and are being redirected into your living space.

You might also notice soot accumulation on the walls and other surfaces in your home. This is especially common if the liner has visible cracks or gaps. The fumes can be hazardous and have a negative impact on your health since they contain high levels of carbon monoxide.

You can spot these cracks and gaps by taking a look inside the fireplace with a flashlight. If there's enough damage, you may notice a black residue or dark flakes on your fireplace hearth. This is a surefire sign that the liner isn't as efficient as it should be and needs attention.

What Are Your Options for Repair or Replacement?

If your chimney liner is damaged, simple DIY repairs won't be enough to fix the problem. You will need to either replace or repair the damaged part of the liner.

Replacement is usually the best option if there's too much damage since it guarantees a longer-lasting solution. The replacement process is relatively straightforward and can be completed in a few hours. A new liner will restore the efficiency of your chimney system and prevent further damage.

If the damage is minimal, you can repair the liner with a sealant. These specially designed liquids can be applied to the lining to create a new seal and prevent further fume leakage. However, this solution is only recommended for minor cracks or gaps since it's just a temporary fix.

At Lifetime Chimney Chicago, we specialize in chimney repair and maintenance services. Our team of experienced professionals have a keen eye for spotting even the smallest of chimney liner damage and can offer you effective long-term solutions. Schedule an appointment today if you need help with liner damage!