What is firestopping?

Firestopping is a method of sealing or blocking openings or penetrations in fire-rated walls, floors, and ceilings to resist the spread of fire, smoke, and toxic fumes. It is an essential component of building systems designed to prevent the spread of fire, protect occupants and first responders, and reduce property damage.

Firestopping materials include caulks, sprays, putty pads, pillows, wraps, sleeves, collars, and other specialized devices designed to seal or enclose openings or penetrations. These materials must be tested and installed according to the requirements of the International Building Code, National Fire Protection Association, and other standards and codes.

Firestopping is typically performed during construction, renovation, or retrofitting of buildings and structures. It is usually performed by specialized contractors or tradespeople trained in firestopping techniques and procedures. Firestopping inspections and maintenance are also critical to ensuring that the fire-rated barriers remain intact and effective throughout the life of the building.