BUC Wall
The Built-Up Composite (BUC) wall is an exclusive LEFF innovation designed for the next generation of mid-rise and high-rise buildings.
BUC Wall — Built-Up Composite Wall System
The Built-Up Composite (BUC) wall is an exclusive LEFF innovation designed for the next generation of mid-rise and high-rise buildings. Engineered as a permanent composite concrete wall system, it redefines how stair cores and elevator shafts are built—delivering strength, precision, and efficiency far beyond conventional concrete walls.
Unlike traditional cast-in-place concrete, the BUC Wall is prefabricated, lighter, and faster to assemble, while still offering the full load-bearing capacity required for both gravity and lateral resistance. By integrating seamlessly into our Cold-Formed Steel (CFS) framing systems, BUC Wall provides a complete structural solution that eliminates the need for bulky and time-consuming formwork.
Key Advantages:
- Structural Performance: Strengthens both gravity and lateral load-resisting systems, acting as a high-performance alternative to shear walls.
- Speed & Efficiency: Prefabrication allows faster installation, reducing site labor and construction timelines in mid-rise projects.
- Architectural Flexibility: Compatible with modern hybrid systems, enabling cleaner layouts, larger openings, and design freedom.
- Durability & Safety: Built as a permanent concrete wall, it ensures fire resistance, acoustic performance, and long-term reliability.
- Exclusive Innovation: Available only through LEFF, the BUC Wall represents a proprietary advancement in structural engineering.
- For developers, architects, and engineers, the BUC Wall provides a smarter way to deliver stair and elevator cores in mid-rise residential and mixed-use buildings—a solution that is faster, safer, and more cost-effective than conventional methods.
- This is more than a wall—it is a structural innovation that positions LEFF at the forefront of modern building technology.