6 Safety Tips to Consider when Working with Chimney Mortar 6 Safety Tips to Consider when Working with Chimney Mortar

Chimney mortar is used to adhere bricks and cement together. It is very durable, easy to make and apply and much easier to maintain and repair. Chimney mortar also helps water from coming into the chimney. Mortar comes in powder form that a user should mix with water when it is ready to be used. Chimney mortar, in essence, help secure the form of your chimney; it gives the shape of your chimney as well as its strength. Chimneys need to be stable and secure on your roof since this is one way of exhausting very hot fumes from your fireplace. Though chimney mortar is very durable and strong, over time, it can deteriorate and can cause a lot of dangers when not maintained properly. Here are some safety tips when working with chimney mortar.


Developing cracks and brittleness of chimney mortar should be checked. Once chimney mortar is brittle and cracked, it should not be left in this condition as these things can just fall and crumble without warning. Always have your chimney inspected for mortar efficiency to ensure that your chimney is standing tall and safe to use. It would be very dangerous to be huddling around the chimney and without warning, have it crumble into the house causing potentially fatal accidents.


Cracked chimney mortar can let moisture in your home destroying the interior of your chimney wall and fireplace system. You do not want this to happen so make sure that the moment you find a crack on your chimney mortar, it is repaired as soon as possible. Mold can also grow if there is moisture coming into your home through cracked chimney mortar.


Chimney mortar should be heat resistant since chimneys give off very high-temperature exhaust. Some brick adhesive material is not heat-resistant and can be very dangerous to use as chimney adhesive. Make sure that the type of mortar you use for your chimney is the recommended for high temperature use such as a chimney.


Do not allow chimney mortar to decay as this will destabilize your chimney and will create a potentially dangerous scenario.


Plan chimney mortar repair when the chimney is not used to allow more curing time for the mortar. Mortar should be completely dried before using. This will ensure its strength and stability and you can be sure that your chimney stays on top of the roof and not fall through the roof.


Some chimney’s are too old for repair and should be demolished, so have a professional check your chimney’s condition.

Missing Mortar

Check for a leaning chimney with missing chimney mortar. Once again, this scenario is dangerous and should be left to professionals.

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