Membrane penetrations require firestopping because they can...

Membrane penetrations necessitate firestopping primarily because they can compromise fire integrity. When these penetrations occur in walls or ceilings that are designed to resist the passage of fire, they create openings that could allow flames, smoke, and heat to spread from one side to the other. Firestopping materials are specifically engineered to seal these penetrations, ensuring that the fire-resistance capabilities of building assemblies are maintained. By effectively filling gaps and openings, firestopping enhances the safety of the structure, providing vital time for occupants to evacuate and for firefighters to respond to a situation. This critical function is why any breach in a fire-rated membrane must be properly managed through appropriate firestopping measures.