Question
What is a penetration seal?
Expert Answer
A penetration seal is a system used to seal the gaps where services (pipes, cables, ducts) pass through fire-rated walls or floors. These gaps breach the fire compartment. We use intumescent mastics, batts, and collars to seal these openings. In a fire, these materials expand to crush plastic pipes and fill voids, maintaining the fire rating of the wall and preventing smoke/fire spread.
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Complete Guide
How to Seal Pipes & Services Through Concrete
Our complete technical guide covers penetration sealing systems, fire rating requirements, hydrophobic and intumescent materials, and installation details for pipes, cables and ducts through concrete walls and floors.
Read the full guide