What type of construction joint is specifically designed for the top of a wall?

The type of construction joint specifically designed for the top of a wall is referred to as the head-of-wall joint. This joint is crucial in building design as it accommodates movement and settling that may occur in structures. Its primary role is to provide flexibility and to allow for vertical expansion or contraction at the top of the wall due to various factors like temperature changes or structural loads. This ensures that the integrity of the wall is maintained and helps to prevent cracking or other forms of structural damage.

In addition, the head-of-wall joint typically serves as a point for interfaces with ceilings, roofs, or other architectural elements, allowing for proper sealing and finishes. By recognizing the importance of this type of construction joint, builders and architects can design spaces that are not only structurally sound but also visually appealing and functional.