Description Rockwool core fire-rated doors represent the pinnacle of passive fire protection. The core is constructed from natural volcanic rock fibers, which are inherently non-combustible and provide a robust barrier against extreme heat, smoke, and toxic gases. This specialized infill does not just stop flames; it significantly reduces heat radiation, ensuring the non-fire side of the door remains at a safe temperature (Temperature Rise rating). Beyond fire safety, the dense fibrous structure of Rockwool acts as a superior sound absorber, making these doors ideal for high-noise areas like mechanical rooms or theaters. Encased in heavy-gauge galvanized steel, these doors are water-repellent, moisture-resistant, and built to maintain structural integrity under the most grueling conditions. Key Features Ultimate Heat Resistance: Rockwool fibers have a melting point above 1,000?C, maintaining stability when other materials fail. Superior Acoustics: Naturally reduces noise transmission (STC ratings typically 34dB to 45dB depending on density). Thermal Efficiency: Provides high R-values, preventing heat loss and reducing energy costs in climate-controlled areas. Non-Toxic: In the event of a fire, the mineral wool core does not emit significant quantities of toxic smoke or gases. Water Repellent: The core is non-hygroscopic and non-capillary, preventing rot and maintaining performance in humid environments. Technical Specifications Fire Rating: 60, 90, 120, and up to 240 Minutes (depending on standard) Core Material: High-Density Mineral Stone Wool (96kg/m? ? 180kg/m?) Standards: UL 10C, NFPA 252, BS 476 Part 22, EN 1634-1 Door Thickness: 45mm to 55mm (Typical heavy-duty construction) Steel Gauge: 16 or 14 Gauge Galvanized / Stainless Steel Temperature Rise: Available with 250?F (121?C) rating for 30/60 mins Acoustic Rating: Typically 35dB (Sound Transmission Class) Finish: Polyester Powder Coating or Epoxy Primer Dimensions: Customisable within certified limits
