How to Install Lightweight Bricks for Neat and Strong Walls

Lightweight bricks are becoming increasingly popular in the construction world due to their light weight, precise dimensions, and quick installation process. However, to ensure a neat, strong, and durable wall, the installation process must be carried out correctly. Small errors such as uneven mortar thickness or crooked brick placement can significantly impact the structure's strength.

Here's a complete guide on how to install lightweight bricks for optimal results:

1. Prepare a Flat and Clean Base Surface
Before starting installation, ensure the floor or foundation surface is flat, dry, and free of dirt or dust. An uneven surface can cause the wall to tilt and affect the structure's strength.

2. Use a Special Adhesive for Lightweight Bricks (Instant Mortar)
Unlike red bricks, which use a mixture of cement and sand, lightweight bricks should be installed with a special adhesive or instant mortar. This adhesive creates thinner joints (about 3 mm) and results in a neater finish.
Ensure the mortar is thoroughly mixed with clean water according to the manufacturer's recommended proportions.

3. Install Bricks from Corners to Center
Start installation from the corners of the building and work your way towards the center. Use string and a spirit level to ensure the bricks are straight and aligned.
Check regularly to ensure no rows are out of alignment.

4. Use a Rubber Mallet to Smooth Out the Position
If any bricks are slightly protruding, tap them gently with a rubber mallet to align them without damaging the brick surface. Avoid pressing too hard, as this can cause the brick to crack.

5. Fill the Grout and Brick Edges with Mortar
Every joint between bricks (both vertical and horizontal) must be completely filled with mortar to prevent air gaps. These gaps can cause the wall to crack when subjected to pressure or temperature changes.

6. Use Reinforcement Every 3–4 Layers
To increase wall strength, install wire mesh or galvanized reinforcement every 3–4 layers of brick. This step is especially important in areas that will support heavy loads, such as door and window frames.

7. Smooth and Finish with a Thin Plaster
After all the bricks are installed, smooth the surface with a thin plaster coat using mortar.
The advantage of lightweight brick is that its surface is already quite smooth, so it doesn't require a thick plaster coat like red brick.

8. Let the Wall Dry Completely
After installation is complete, let the wall dry for at least 2–3 days before painting or applying any other finishing touches. The natural drying process helps prevent hairline cracks on the wall surface.

Conclusion
Installing lightweight bricks is indeed faster and more efficient, but it still requires precision. Use the right adhesive, maintain even brick placement, and don't forget to install reinforcing bars for strong and durable results.

If you're planning a home or building project, be sure to choose quality lightweight bricks and building materials for optimal results.

Get the best building materials only at PT Intisumber Bajasakti (ISBS)!
We provide a variety of construction materials such as lightweight bricks, cement, iron, pipes, and paint from well-known brands with SNI quality and competitive prices.

📞 Phone: 021-66675999
🌐 Web: intisumberbajasakti.com
✉️ Email: info@intisumberbajasakti.com

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