How To Repair Cracked Clay Chimney Liner

The clay tiles are typically square shaped and 24 long.

How to repair cracked clay chimney liner.

Most masonry fireplaces are built with clay liners. The clay tiles located near the top of the chimney are usually the first ones to fail since they are exposed to the greatest temperature changes. The cast in place chimney lining is made with an insulated mortar like mixture that is perfect for filling in deteriorating mortar joints and. A cast in place liner is the best choice if you have a masonry fireplace with a clay tile liner that is failing or if you have a chimney with structural problems.

Over time intense heat weather conditions and general wear and tear can result in a cracked liner. That s what our home inspector found in gainesville fla. The chimney crown sits on top which shelters the chimney from rain and snow. Heatshield chimney liner repair system is another method for repairing chimney flue tiles is to use a heatshield chimney liner repair system.

Heatshield is a chimney liner repair system that eliminates the hazards and draft problems caused by gaps cracks and spalling in otherwise sound masonry chimneys. As a result harmful gasses and even fire can seep into your house. Heatshield involves winching a foam piece up through the flue system smoothing heat resistant mortar through all the cracks and open mortar joints. Our photos above show damage to the chimney clay flue tiles near the chimney top with multiple cracks in the clay flue liner above left and severe spalling in the clay flue tile liner above right these are two different chimneys.

We recommend ahrens chiming lining. A stainless steel chimney liner is the preferred option among homeowners as it often comes with a lifetime warranty and typically never needs to be replaced. Fixing a single cracked flue tile. Single clay flue tiles can also be installed to replace broken ones but will often crack again creating another safety hazard within the flue.

If you have only one cracked flue tile and this tile is reachable from the top of the chimney the best repair is to remove and replace the tile.