Description

Fire rated doors are specially constructed doors designed to resist the passage of fire and smoke for a specified period, helping to create safe spaces for occupants to evacuate and reducing property damage. They are fundamental components of passive fire protection systems in buildings. Key Points Purpose: Fire rated doors compartmentalize fire, slow its spread, and provide essential protection to escape routes (such as stairwells and corridors). Fire Resistance Rating: They are rated based on the duration they can withstand fire, typically in minutes (e.g., FD30, FD60, FD90, FD120), indicating 30, 60, 90, or 120 minutes of resistance. Materials: Commonly made from steel, timber, or composite materials, sometimes with fire-resistant glass panels. Construction depends on the required rating and installation environment. Components: A fire rated door set includes the door leaf, frame, seals (such as intumescent strips that expand in heat), appropriate hardware (hinges, closers, panic bars), and sometimes glazing (“fire rated glass”). Certification & Standards: Must comply with strict guidelines (such as NFPA 80 or EN 16034) and be tested/certified as a whole assembly. The rating and certification label are usually visible on the door. Installation & Maintenance: Installed mainly in escape routes, fire exits, stairwells, and between zones that need compartmentalization. Regular inspection, maintenance, and certification are mandatory per local regulations to ensure continued effectiveness.