What Is Repointing Brick?
Repointing brick is generally known as repointing of brick or repointing of brickwork. Repointing of brickwork is a basic process where you renews or repair the outer portion of your brickwork. In this process, we only take care of the cement mortar.
Repointing is done when the mortar between two consecutive brick joint is getting empty, then you need to start repointing operation. Repointing is done to create a more beautiful outlook of the structure and it also resist the entry of water into the inside portion of that house.
So, basically repointing of brickwork is the process to refill the cement mortar into the bricks, stones, etc. Repointing of brickwork is a very easy and fast process and the labour cost is also not so much high & it does not take too much skilled labour.
When You Need Brick Repointing?
Brickwork is a very open type of structure and you need to take some proper crae about it. When the brickwork needs some repointing then there is must be some signs, those are-
- Damaged Bricks: If the bricks of your house got damaged then it reduces the beauty of your house. At that time you need to repair or repoint the mortar to the damaged bricks. If the bricks are over-damaged then you need to replace those damaged bricks as soon as possible.
- Unsuitable Pointing: It is a very major issue of the brick repointing, here, faulty repointing cause some damage in the wall. Cement mortar contains more moisture and that will reduce the strength of brick mortar joint. Sometimes, the whole structure will covered into frost then it will create the upper face of the brick into crumble.
- Efflorescence: Efflorescence is generally a commo0n problem of the bricks. Here, some white patches are arrived into the brick surface due to some excess moisture content. If bricks are found which have an efflorescence effect then it must be replaced.
- Clean Surface: The surfaces of bricks must be cleaned properly because if there is some amount of dirt is present then it will reduce the adhesion property of cement mortar. If there is some difficulties then the whole structure not be strong enough. So, we need to clear the brick surface carefully.
- Damp: Damp is a very common thing, when dampness is observed then it must be done some proper inspection and take required action. So, these are the signs when you need brick repointing.
Types of Repointing Brick
There are generally four types of repointing brickwork is available, those are following-
1. Flush Pointing
It is a very common type of pointing, here mortar is placed at the joint of two bricks and the edges are nicely and perfectly trimmed to maintain the same level of wall.
The trimming operation is done by trowel and straight edge tools. Flush pointing does not prove a good appearance but it definitely resist the joints from dust, rain, etc.
2. Recessed Pointing
Recessed pointing is another very much popular type of brick pointing. In recessed pointing, the mortar is pushed at a distance of 5 mm or more from the edge of the brick joint.
It requires some well trained labour and the labour cost is also moderate. Recessed pointing provides a good outlook of that house.
3. Beaded Pointing
Beaded pointing is a special type of pointing where we use irom or steel metal a t the joint of two bricks.
The steel portion is naturally concave in nature. Beaded pointing provides a good aesthetic look of the house but the longevity of this pointing is very disappointing.
4. Struck Pointing
Struck pointing is a modification of flushed pointing. In struck pointing, the mortar is placed in inclined shape; the upper portion of the mortar is placed at a distance of 10 mm from the outer edge of the upper brick.
The main advantage of struck pointing is it drains rainwater very easily with a very short time period.
5. Rubbed, Keyed or Grooved Pointing
It is also a modified part of flushed pointing where a grooved is made by a special hand tool. This type of pointing provides a beautiful outlook.
6. Tuck Pointing
Tuck pointing is similar to groove pointing. Here, we also create a groove which is 3 mm depth and 5 mm width. After creating groove, it will fill with cement mortar.
7. V Pointing
V pointing is a special type of pointing where, the mortar is placed in a joint the face of mortar is finished like V notch.
8. Weathered Pointing
Weathered pointing is the reverse operation of the V notch. In weathered pointing, a V-like portion is projected from the joint of two brick.
Tools and Materials Required for Repointing Brick
There are naturally various types of tools are required for repointing bricks, those are in the following
- Brick Hammer
- Pointing Chisel
- Paint Brush
- Pointed Trowel
- Finishing Trowel
- Margin Trowel
Different materials are also used to repoint the bricks, those are