Chimney Liner Hazards and How to Avoid Them

October 14, 2016

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Chimneys may be the most overlooked component of your home. The problems in them aren’t visual ones, and don’t usually draw attention until something is drastically wrong. Yearly inspections by a specialist who performs chimney repair in Kennesaw are recommended to identify any structural issues or potential hazards due to chimney deterioration.

Chimney flues are designed to carry heat and gases up and away from the fireplace. But over time, these fuels corrode the inner surface of the flue and prevent it from performing properly.

Possible Flue Hazards

There are hazards operating a chimney that has a defective or nonexistent flue liner:

  • Unlined chimneys allow heat to move so fast through the chimney that nearby woodwork could catch fire within 3 1/2 hours.
  • Flue gases are acidic and erode the mortar joints, causing faster heat transfers and allowing dangerous gases like carbon monoxide to leak into the home.
  • A liner that is the wrong size can lead to a buildup of highly flammable creosote, and create carbon monoxide fumes.

Your chimney liner may need replacing because it is damaged and no longer performing its job, causing a potential health and safety hazards to your family and a risk of structural damage to your home. In some cases, the chimney flue might not have a liner at all, which would be revealed through an inspection by a professional.

Resolving Chimney Liner Issues

Although it can be costly, there may be no other solution than to replace the liner. There are three types of chimney liners:

  • Clay tile liners are the most common, and the least expensive option in most cases.
  • Metal liners offer superior fire protection, and are constructed as a single, continual component. Stainless steel chimney liners are a popular version.
  • Cast-in-place liners are seamless, and can improve the integrity of older chimneys.

In some situations, a ceramic sealant can be applied to repair exposed mortar joints instead of replacing the entire flue liner. The sealant provides a smooth, acid- and water-resistant finish that reduces heat transfer and creosote build-up, and seals mortar joints.

Before you use your fireplace for the first time this season, schedule an inspection with a specialist who will check your chimney liner in Kennesaw for any signs of deterioration. Ask about the warranties available for replacement liners, such as the lifetime guarantees available on some stainless steel chimney liners in Kennesaw.

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