Penetrations in fire-rated construction can allow spread of fire and smoke from one firecell to another if they are not correctly tested, specified or installed. It is always recommended to resolve and specify fire rated service penetrations in the design office rather than on-site. For proprietary systems contact the relevant penetration seal supplier.
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Penetration firestopping systems and fire resistive joint systems are a passive means of fire protection. There is no movement or activation required. These passive systems are mainly used to compartmentalize a fire and keep it from spreading for a period of time long enough that occupants can evacuate the building and so firefighters can perform initial lifesaving tasks.
Don't know which product to use? Use our firestop system search to find the right product for your application. Under fire exposure, the intumescent pads expand and swell resisting the passage of smoke and flame. The Series 33 incorporates built-in intumescent pads that automatically adjust to cable fills.
Where fire rated compartments are created to contain fire to the area it originates in, there will always be a requirement for services to pass through these barriers. These service penetrations create a weak point that can allow the fire to escape for the compartment. Promat Australia have developed an array of solutions to protect these openings.
Concrete masonry is widely specified for fire walls and fire barriers because it is noncombustible, durable and economical. Firestopping must be installed in accordance with code requirements to maintain fire and life safety. Choosing an appropriate firestopping system is a key component to a successful installation.
For approximately 40 years, unprotected or improperly protected penetrations have presented a subject of much concern to the fire-protection community. The arriving firefighters discovered several fires had broken out in five remote locations, filling many different areas of the building with smoke. According to the National Fire Protection Association's report on the fire, unprotected vertical and horizontal penetrations provided one of the major contributing causes of the rapid, erratic spread of smoke and fire.
What are membrane penetration firestop systems and how has the penetration firestop standard evolved to evaluate them? The changes include a new section for definitions relating to the various types of membrane-penetrations, a description of the test setup for membrane-penetrations, and the conditions of acceptance for membrane-penetrations. For example, when a firestop system protecting a plumbing pipe penetrates the gypsum membrane on one side of a fire-resistance-rated gypsum wall, this revised standard would be used to evaluate that firestop system.