When it comes to stone and brickwork, do not underestimate the power of pointing. This is mainly because the mortar can take about 15 percent of the total surface area of your walls. It also holds a huge impact on the quality of your building. The mortar also works against water ingress. The role it plays makes it a crucial aspect of home maintenance that should never be ignored. The following is information on everything you need to know about re-pointing brickwork.
Blocks, stones, and bricks are hardy materials that last for a very long time. However, during construction, the material that holds them together needs regular maintenance to keep them in the right condition. The mortar that holds the bricks together is called pointing. Repairing is called re-pointing and should be done regularly.
Testing its Resilience
The ideal method of testing the resilience of the pointing is to look at it. If it is even and flush to the bricks, it can be assumed to be okay. It is important for the pointing to be full since it is the only way water from outside could not access your home. You can also give it a finger test. What you need to do is try to dig it with your finger and see if any comes out. This should be done all round the house.
If the mortar comes out during the finger test, you should get ready for pointing repair. Damage to the mortar can be localized on places where there are leaks, but more often than not they can be suffering from age. Your mortar could also suffer from a previous pointing repair job.
The Ideal Type of Mortar
There is a huge range of colors and textures that can be formed when mixing mortar. A huge percentage of homes built during the 1800s and 1900s used lime mortar. Although it is frequently done, the use of cement during re-pointing tends to be a bad thing at times. This is mainly because they could decay earlier than lime-mixed ones, and also because there are numerous chances for damp to occur. Other than that, cement mortars are more brittle, harder, and less porous than lime. They also weather way slower than the bricks.
Cement mortars also tend to be affected by sulfate and salt, while those that contain lime, hydraulic and putty are not. Even though lime mortars are expensive than cement ones, in the long run, they tend to save you money. This is mainly because problems caused by wrong cement mixes can lead to huge losses.
Tools Needed During Pointing Repair
Just like in every job, using the appropriate tools is vital to getting the ultimate results. Tools needed for pointing installation or repair job include cement mixer, chisel, mortarboard, pointing trowel, soft and wire brush, scaffolding, lime sand, or white cement. Professional knowledge from PointBrick is also needed for the effective pointing job.
Mortar and bricks make sturdy foundations for many building. Sometimes, to prevent water damage from maiming the quality of the constructions, top-ups are required. To get the most out of pointing, it should be done when necessary and only professionally