What is the primary purpose of joint firestopping?

The primary purpose of joint firestopping is to protect joints in fire-rated walls, floors, and ceilings from the passage of fire and smoke. This is vital for maintaining the integrity of fire-rated assemblies, which are designed to contain fires and limit their spread within a building. By effectively sealing joints, firestopping helps to ensure that fire and smoke do not travel through these gaps, which might otherwise compromise the safety of occupants and the structure itself.

In the context of building safety, fire-rated joints are crucial in providing a barrier that meets fire code requirements and helps to protect life and property. Ensuring that these joints are adequately firestopped not only helps in compliance with safety regulations but also plays a significant role in fire protection strategy within a facility.