What is the primary purpose of aligning the blocks during CMU installation?

The primary purpose of aligning the blocks during CMU (Concrete Masonry Unit) installation is to ensure structural stability. Proper alignment is crucial because it affects the overall integrity and strength of the structure being built. When blocks are aligned correctly, they distribute loads evenly across the walls, reduce the risk of cracks, and enhance the overall durability of the masonry work.

An uneven installation can lead to weak points that may compromise the structure's ability to withstand stress over time. This is especially important in load-bearing walls where misalignment can lead to structural failure. Ensuring that blocks are aligned not only contributes to the strength of the wall but also helps in maintaining proper bonding between the blocks and mortar, which further enhances stability.

While aligning blocks can also improve aesthetics, match design specifications, and potentially affect installation speed, these are secondary benefits compared to the critical need for structural stability. Ensuring that the blocks are installed straight and level is fundamental to achieving a safe and long-lasting structure.