Passive Fire Protection
Passive Fire Protection is the set of elements built into the structure that limit fire spread without needing activation. The category includes fire doors, fire dampers in HVAC ducts, fire-rated sealants, intumescent paints, fire-resistant barriers, and firestop penetration seals. They all work by preserving the structural element's fire resistance for a defined time.
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About this category
Passive fire protection needs no sensors or power — it performs by its mere presence, which makes it the most reliable layer of fire safety. Fire doors are classified by resistance time (30, 60, 90, 120 minutes), must have self-closing hardware, and must remain closed or be held open only by approved hold-open devices that release on alarm. Fire dampers in HVAC ducts prevent fire from passing (smoke control needs smoke or combination dampers) between compartments through air paths and operate when a thermal link releases a steel blade. Fire-rated sealants close gaps around cables and pipes and preserve the wall's fire-resistance time. Intumescent paints coat structural steel and expand under heat to form a thick insulating layer, protecting the steel from strength loss. Fire-resistant barriers compartment the building and are designed for defined fire resistance. Firestop penetration seals apply wherever cables or pipes cross a fire-rated wall. Fire-resistance ratings rely on approval by an accredited laboratory for each product before installation and handover. Specifications follow UL 10B/C, EN 1634, UL 1479, and EN 1366.
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Passive fire protection needs no sensors or power — it performs by its mere presence, which makes it the most reliable layer of fire safety. Fire doors are classified by resistance time (30, 60, 90, 120 minutes), must have self-closing hardware, and must remain closed or be held open only by approved hold-open devices that release on alarm. Fire dampers in HVAC ducts prevent fire from passing (smoke control needs smoke or combination dampers) between compartments through air paths and operate when a thermal link releases a steel blade. Fire-rated sealants close gaps around cables and pipes and preserve the wall's fire-resistance time. Intumescent paints coat structural steel and expand under heat to form a thick insulating layer, protecting the steel from strength loss. Fire-resistant barriers compartment the building and are designed for defined fire resistance. Firestop penetration seals apply wherever cables or pipes cross a fire-rated wall. Fire-resistance ratings rely on approval by an accredited laboratory for each product before installation and handover. Specifications follow UL 10B/C, EN 1634, UL 1479, and EN 1366.
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