Fire Collars

Fire stopping is a form of passive fire protection that is used to seal around openings and between joints in a fire-resistance-rated wall or floor assembly.

Passive fire protection measures are less visible than ‘active measures’ such as sprinklers and fire extinguishers. Passive measures concern critical componentsthat should be incorporated into the framework of the building, and they are equally critical in the role of slowing fire spread at source. Passive fire protection is about dividing a building into compartments – usually determined by floors and walls.The aim is to ensure that these compartments are fully separated and therefore slow the spread of fire and smoke, contain the fire at its origin and protect escape routes.

Internal services such as waste, water and drainage create large cavities to pass plastic, flammable pipes through the building. Utilities create cavities in walls or floors to pass plastic, flammable pipes through the building. These cavities can compromise the compartments, enabling fire to spread more swiftly. Pyroplex manufacture fire stopping products to seal these cavities and help to slow the spread of fire and smoke from compartment to compartment. Where penetrations and cavities are concerned, pipe wraps, pipe collars and construction sealants are important.

Fire collars prevent the passage of fire and hot gases from one compartment to another through service penetrations and ductwork. They are suitable for use in concrete and masonry walls and floors, as well as plasterboard partitioning walls. Fire wraps perform the same function but they must be installed within a solid construction masonry wall.