How far apart should wall ties be installed in multiple wythe masonry, vertically?

In multiple wythe masonry construction, wall ties are essential components that help ensure the structural integrity and stability of the masonry walls. The requirement for vertical spacing of wall ties is critical for preventing movement and maintaining the alignment of the wythes.

When installed vertically, wall ties should generally be spaced at 24 inches apart. This spacing allows for adequate support and ties together the different layers of masonry, providing the necessary connection that helps to resist lateral forces and ensure a uniform distribution of loads across the wall. This distance is in accordance with industry standards, which are based on safety factors, structural performance, and building codes.

In scenarios where wall ties are spaced too far apart, such as at greater distances than 24 inches, there can be increased risk of movement between the wythes, which may lead to cracking, increased stress on the materials, or even structural failure. Conversely, spacing them too closely does not necessarily enhance their effectiveness and can lead to unnecessary labor and material costs.

Maintaining a uniform 24-inch vertical spacing for wall ties aligns with best practices in masonry construction, ensuring robust and durable wall systems.