What type of joint connects two walls?

The type of joint that connects two walls is referred to as a wall-to-wall joint. This joint specifically facilitates the meeting and connection of two vertical wall surfaces, ensuring stability and structural integrity. In various construction and firestop applications, such joints are critical for maintaining compartmentalization, which is essential for fire protection and the overall safety of a building.

Understanding the specifics of wall-to-wall joints is important for implementing effective firestop solutions, as these joints can be points of vulnerability where fire and smoke could potentially spread if not properly sealed. Thus, the correct identification of this joint type is crucial for ensuring compliance with fire safety regulations and building codes.

Other options, while they pertain to important structural connections, do not specifically describe a joint that connects two walls. The head-of-wall joint deals with the connection at the top of a wall, often related to interactions with ceilings or roof structures. Floor-to-floor joints typically involve connections between different levels in a building, while curtain walls refer to a non-structural cladding system that is often used in high-rise buildings. Each has its specific function, but they do not describe the direct connection of two walls as accurately as the wall-to-wall joint.