Improve fire-door performance with USG ME Ceramic Fire Core, a lightweight core material developed for fire-rated metal and wooden door systems. Designed to support fire resistance, door stability and thermal insulation, the core helps limit heat transfer and maintain integrity when exposed to high temperatures.
Available in thicknesses from 35 mm to 65 mm, Ceramic Fire Core can be supplied in a standard 1200 x 2400 mm format or factory-cut for specific door-manufacturer requirements. Its tested performance makes it suitable for projects where fire-resistant doors form part of the building’s passive fire-protection strategy.
Ceramic Fire Core for Fire-Rated Door Systems
A fire-resistant door is a complete assembly in which the door leaf, core, frame, seals and hardware work together to achieve the required performance. The core is important because it contributes to the door’s ability to remain stable and resist heat transfer during fire exposure.
USG ME Ceramic Fire Core is designed as an integral component for fire-rated wooden and metal doors. It combines fire resistance with thermal insulation. For UAE projects, the selected door assembly should match the approved specification and tested configuration.
Tested Fire Performance for Metal and Wooden Doors
USG ME Ceramic Fire Core has demonstrated 120 minutes of integrity (E), 60 minutes of insulation (I2) and 120 minutes of radiation control (W) in accordance with EN 1634-1. USG ME also identifies BS 476 Part 22 among the test methods associated with the product.
Integrity relates to resisting fire passage, insulation to limiting temperature rise, and radiation to transmitted heat.
These values should not be treated as ratings for the core in isolation. Fire resistance depends on the complete tested door system, including the leaf construction, core thickness, facings, frame, seals and hardware.
Thermal Insulation and Door Stability Under Fire Exposure
During a fire, a door needs to retain stability while limiting flame and heat transfer according to the specified assembly performance.
Ceramic Fire Core is engineered to support door stability under high-temperature exposure and provides a thermal conductivity value of λ = 0.057 W/m°K. By reducing excessive heat transfer through the door construction, the core contributes to overall insulation performance.
This supports projects where compartmentation and protected routes form part of the fire-safety design.
Fire Door Core Thickness and Custom Size Options
Door construction varies according to manufacturer, fire rating, hardware and architectural requirements. The core must therefore accommodate different door-leaf configurations.
USG ME Ceramic Fire Core is available in 35 mm, 40 mm, 45 mm, 50 mm, 60 mm and 65 mm thicknesses. The standard sheet size is 1200 x 2400 mm, while factory-cut dimensions can be produced according to manufacturer requirements.
Ceramic Fire Core vs Fire-Rated Gypsum Board
Ceramic Fire Core and a fire rated gypsum board serve different purposes. Ceramic Fire Core is designed for use within fire-resistant door leaves, while an FR gypsum board is typically used within tested wall, partition or ceiling assemblies.
USG ME offers separate fire-rated gypsum products within its plasterboard range. In a building specification, the door assembly and surrounding fire rated drywall may therefore use different materials while working together as part of the passive fire-protection strategy.
Where service openings are required within rated walls, suitable Access Panels should also be selected according to the tested assembly and project fire requirements.
How to Select Ceramic Fire Core for UAE Projects
Specification should begin with the required door performance and approved construction rather than material thickness alone.
Key considerations include:
Fire performance: Confirm integrity, insulation and radiation requirements.
Door construction: Check whether the core is for a metal or wooden door.
Core thickness: Match the thickness to the tested door design.
Dimensions: Confirm whether standard or factory-cut sizes are required.
Frame and hardware: Coordinate the leaf with seals, hinges, frame and ironmongery.
Approvals: Check project fire-safety and authority requirements before fabrication.
Documentation: Review the product datasheet and relevant tested configuration.
This approach helps avoid selecting components that do not correspond with the intended door system.
Coordinating Fire Doors with Drywall Systems
Fire doors often sit within gypsum partitions, shaftwalls and other compartment walls, so the opening must be coordinated with the surrounding construction.
Where a rated wall meets a door opening, framing, boards, perimeter details and frame interfaces should follow the approved system design. Drywall accessories used in adjacent wall construction should also suit the specified assembly.
Service penetrations and maintenance openings should be planned carefully so later site changes do not compromise the intended performance.
Why Specify USG ME Ceramic Fire Core?
USG ME supports specifiers and door manufacturers with product data and technical documentation for Ceramic Fire Core.
The core combines tested fire performance, thermal insulation, multiple thickness options and customizable sizing for fire-rated metal and wooden door applications. USG ME also states that it is made using lightweight recycled materials.
For projects combining a Fire Resistant Door with surrounding partitions, consultants should evaluate each element as part of the complete fire-protection strategy rather than assuming that an FR board, door core or other individual material defines the performance of the entire assembly.