Repointing heritage buildings is a crucial part of preserving their historic value. Repointing is the process of removing the old mortar between the bricks and stones in a building and replacing it with new mortar.
This is important because the old mortar can become brittle and crack over time, allowing water to seep in and eventually cause damage to the building. You can also search online to hire experts for repointing in Sydney at https://www.keystonepointing.com.au/brick-repointing-sydney.
The first step in repointing a heritage building is to determine what type of mortar was originally used. This can be done by examining the existing mortar joint and determining its composition.
Once the composition is determined, it’s important to find a mortar mix that is compatible with the original. The mortar mix should also be suitable for the environment and climate in which the building is located.
Once the appropriate mix has been determined, the next step is to remove the old mortar. This can be done using a variety of tools, including a cold chisel, a pneumatic chisel, and a hammer and chisel. Care must be taken not to damage the surrounding stone or brickwork. Once the mortar is removed, it’s important to clean the joint and prepare the surface for the new mortar.
The new mortar can then be mixed and applied to the joint. It’s important to use the appropriate amount of water in the mix and to apply the mortar in layers. This ensures that the mortar adheres to the surrounding stone or brickwork and that it is strong enough to last.
