What Is Pointing in Brickwork? Method and Types of Pointing
Pointing in brickwork is the finishing of mortar joints between bricks or blocks after the masonry is laid. It enhances weather resistance, appearance, and longevity by sealing joints against water ingress and filling irregularities.
Why Pointing Is Important
- Prevents water penetration and dampness
- Improves aesthetic appeal of masonry
- Fills and compacts joints to reduce cracking
- Enhances durability and weather resistance
- Facilitates maintenance and repair of aging walls
Pointing Method: Step-by-Step
- Allow mortar joints to firm up but remain workable (just thumbprint hard).
- Clean out loose mortar and debris to a uniform depth of 10–15 mm.
- Brush away dust and moisten joints lightly to aid adhesion.
- Prepare pointing mortar (cement–sand mix, often 1:3 ratio) to a stiff consistency.
- Pack mortar into the horizontal and vertical joints using a pointing trowel or caulking gun.
- Strike or finish the joint profile using the appropriate pointing tool before mortar sets.
- Brush the surface to remove excess mortar and expose brick faces.
- Cure gently by misting or covering to prevent rapid drying and cracking.
Types of Pointing Profiles
1. Flush Pointing
The mortar is finished flush with the face of the masonry, creating a smooth, flat joint. Ideal for simple, clean-look walls.
2. Recessed Pointing
The mortar is set back slightly from the brick face, producing a shadow line. Offers traditional appearance and accentuates brickwork.
3. Weather Pointing
Mortar is shaped with a sloping face, shedding water away from the joint. Effective in exposed exterior walls.
4. Weather Struck Pointing
Similar to weather pointing but with the slope on the underside of the joint, providing additional water deflection.
5. Bucket Handle Pointing
A convex joint profile formed with a rounded tool, resembling the shape of a bucket handle. Combines good water runoff with decorative appeal.
6. V-Joint Pointing
The mortar is tooled into a V shape to accentuate brick edges and create a crisp, modern look.
7. Struck Pointing
Mortar is shaped to a straight sloping joint with the top edge flush and the bottom edge recessed. Common in masonry requiring water shedding.
8. Beaded Pointing
A rounded, bead-like profile protruding slightly from the mortar joint. Provides decorative detail and highlights brick pattern.
9. Angled or Raked Pointing
The mortar is raked out to a uniform depth with a flat back and front face, creating a deep shadow line. Often used for weatherboarding effect.
Choosing the Right Type
- Consider local climate and exposure to rain or freeze-thaw cycles.
- Match pointing style to the architectural period and brick texture.
- Ensure mortar color and finish complement brick or block work.
- Balance decorative needs with functional water-shedding requirements.
Maintenance Tips
- Inspect pointing annually for cracks or erosion.
- Remove damaged mortar carefully and repoint using matching mix.
- Avoid high-pressure washing to preserve joint integrity.
- Reapply water-repellent sealers if appropriate for the brick type.
Conclusion
Pointing is a critical finishing process in brickwork that protects masonry from moisture, enhances visual appeal, and extends service life. By following proper methods and selecting the appropriate joint profile, builders can achieve both durable and attractive brick walls.
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