Fire Doors
Fire Doors are built to contain fire in its origin area for a defined period (30, 60, 90, 120 minutes), preventing spread to the rest of the building. They comprise a fire-rated steel or timber leaf with internal insulation, a rated frame, self-closing mechanisms, and smoke seals. Essential in multi-story buildings and stairways.
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Fire doors are a core element of passive fire protection that operates without power or human intervention. The design: a fire-rated steel or timber leaf with internal insulation (mineral wool, intumescent material), a rated steel frame fixed to the wall, fire-rated hinges, a fire lock that does not auto-release in heat, a door closer that shuts the door after every opening, smoke seals around the edges, and intumescent strips that expand at 200°C to fill gaps. Common market ratings include FD30 (30-minute rated), FD60 (60), FD90 (90), FD120 (120), FD240 (240 for high-security vaults). Technical performance codes include E = fire integrity, I = thermal insulation, S = smoke resistance; e.g., EI₂60 describes 60-minute fire with insulation. Materials: steel with fire-rated paint, timber fire doors with multi-layer fiberboard and intumescent material. Applications: boundaries between fire compartments, escape stairs (as set by the local code, compartmentation design and egress route), electrical equipment room entries, transformer vault entries, elevator lobbies in some systems, and entries between large storage units. A critical technical note: a fire door only works if actually closed; anything preventing self-closing (a wedge, a magnet without a control system) voids its function. Many modern doors use an electromagnet that releases on fire alarm. Review the model's acceptance documentation and project requirements before installation.
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Fire doors are a core element of passive fire protection that operates without power or human intervention. The design: a fire-rated steel or timber leaf with internal insulation (mineral wool, intumescent material), a rated steel frame fixed to the wall, fire-rated hinges, a fire lock that does not auto-release in heat, a door closer that shuts the door after every opening, smoke seals around the edges, and intumescent strips that expand at 200°C to fill gaps. Common market ratings include FD30 (30-minute rated), FD60 (60), FD90 (90), FD120 (120), FD240 (240 for high-security vaults). Technical performance codes include E = fire integrity, I = thermal insulation, S = smoke resistance; e.g., EI₂60 describes 60-minute fire with insulation. Materials: steel with fire-rated paint, timber fire doors with multi-layer fiberboard and intumescent material. Applications: boundaries between fire compartments, escape stairs (as set by the local code, compartmentation design and egress route), electrical equipment room entries, transformer vault entries, elevator lobbies in some systems, and entries between large storage units. A critical technical note: a fire door only works if actually closed; anything preventing self-closing (a wedge, a magnet without a control system) voids its function. Many modern doors use an electromagnet that releases on fire alarm. Review the model's acceptance documentation and project requirements before installation.
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