The Process of Repointing Brickwork
The mortar that holds brick together is likely to crumble away and come out since the wall is exposed to external elements like wind, rain and frost. This type of damage may take years to occur but when it does, it must be repaired immediately. If repointing is not done, water can easily penetrate and damage the brick wall. The process of repointing brickwork can be done on the small area where the damage has occurred. However, when this is done the repointed area will appear to stand out compared to the rest of the brickwork. That’s why the whole wall needs repointing to be done at the same time.
The first stage of repointing brickwork usually involves cleaning out all the old mortar between the bricks. This must be done carefully and using the right tools in order to avoid damaging the neighbouring bricks. The old mortar must be removed from the top, bottom and sides of the bricks. If there are damaged or loose bricks, they must be replaced before repointing brickwork.
It is also very important to choose the right repointing mortar. A sand and cement mix is not the ideal mortar because it tends to set too fast and it doesn’t form a strong bond in between the bricks. The mortar needs to be fairly firm so that it can provide a strong bond.
There are a number of finishes which can be used when repointing brickwork. The most common ones are the flush finishing, weathered finishing and recessed key finishing. Flush finishing is considered the easiest whereas weathered finishing is a fairly difficult one to achieve without professional assistance. Repointing must not be done during wet or frosty weather. It is important to hire a professional team like us to determine what type of repointing your building requires and when it can be done.