Chimney Mortar Crown Repair

Chimney crowns sometimes mistaken as chimney caps or covers are the slab of concrete at the top of a chimney.

Chimney mortar crown repair.

Water inside the chimney can erode the bricks and mortar as well as rust and destroy the metal components of the chimney system and fireplace. Chimney crown repair a lot of chimneys crowns we see have cracks in the crown mortar which are in need of repair that can allow water to enter the chimney structure. Chimneyrx brushable crown repair is a masonry chimney crown repair product that is easy to apply with a 3 or 4 paint brush. Mortar typically comes as a large bag of powder that must be mixed with water per manufacturers.

Fixing your chimney crown costs 150 to 300. Chimney crown repair cost. It protects the brick and mortar of the chimney and keeps pests out as well. Spread evenly using the trowel.

The most common use for mortar in chimneys is for mortar repair between the bricks or tuckpointing. It is important to repair any damage to the chimney crown as soon as possible as it is the most common culprit of chimney leaks which can be extremely damaging. Now move the trowel in a chopping motion so that the mortar binds the crown more firmly. The compounds are all solvent free and will not harm the environment.

They do more than just keep rain from coming down the flue and into your home. Inject the repair mix into the crack with a squeeze bottle or force into the crack with a putty knife. Curing time typically ranges from four to six hours but it may take longer for wider cracks. It s very durable and requires no mixing or special bonding agents.

See if the cement holds to the chimney body and then apply more of the mix. Just make sure the mortar is tightly packed each time it s applied. Why repair a damaged crown. Fingers often work as the best tool for some of the tighter joints image 2.

Large cracks on the chimney crown between 1 8 and 1 inch in diameter can be repaired with pre mixed cement patch or mortar. A chimney crown is a concrete cap that tops the masonry walls of a brick chimney to shed water and seal the chimney s flue to the masonry. A solid crown in good repair prevents water damage from. Clear away excess mortar image 3 making sure it fills the void and stays in place.