2 Hour Fire Rated Structural Steel Protection
Structural steel requires proven fire protection to maintain its loadbearing capacity during a fire. The 2 Hour Fire Rated Structural Steel Encasement is designed to protect steel columns and beams using a tested PROMATECT®-H board encasement system, making it suitable for a wide range of commercial, industrial and high rise developments.
Supplied by PROSAFE, this PROMAT system consists of a single layer of PROMATECT®-H calcium silicate boards with the required board thickness selected according to the steel section factor (Hp/A ratio). The boards are fixed using approved steel framing or board edge fixing methods to form a complete encasement around the structural steel in accordance with the tested construction.
When installed as the approved assembly, the system provides 120 minutes of fire resistance and achieves a Fire Resistance Level (FRL) of 120/-/-. The system has been tested and assessed in accordance with BS 476 Part 21:1987 for structural steel protection and is suitable for protecting exposed structural steel members within buildings.
Suitable for commercial, industrial, institutional, residential and high rise projects, this system provides a practical passive fire protection solution for structural steel columns and beams where tested fire resistance is required.
The 2 Hour Fire Rated Structural Steel Protection is suitable for a variety of building types, including:
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Commercial buildings
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Industrial facilities
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Institutional buildings
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Residential developments
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High rise buildings
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Refurbishment and restoration projects
Technical Specifications
Title | Description |
|---|---|
Fire Resistance | 120 Minutes |
Fire Exposure | External |
Fire Resistance Level | FRL 120/-/- |
Test Standard | BS 476 Part 21:1987 (Structural Steel Protection) |
Board | PROMATECT®-H |
System Type | Structural Steel Column & Beam Board Encasement |
System Thickness | Determined by the steel section Hp/A ratio and required fire resistance |
Applications | Commercial, Industrial, Institutional, Residential, High Rise and Restoration Projects |
Acoustic Performance | Not Published |
Detailed Systems & Brochures
Frequently Asked Questions
Is this system tested?
Yes. This system has been tested to BS 476 Part 21:1987 for structural steel protection and provides 120 minutes of fire resistance when installed in accordance with the tested assembly. It is supported by the relevant test documentation and is accepted for BOMBA submission where applicable.
Do fire rated systems require certificate renewal?
No. Building owners do not need to renew the fire test certification. The certification is maintained by the system manufacturer (PROMAT), while the installed system should always follow the tested assembly and manufacturer recommendations.
How much does this system cost?
The cost depends on factors such as the project size, steel member dimensions and specification requirements. Contact PROSAFE for a project-specific quotation and technical advice here.
Why choose PROSAFE for passive fire protection systems?
PROSAFE supplies PROMAT fire rated systems that are rigid, lightweight, moisture resistant and supported by tested documentation. With a wide range of system options and practical technical support, we help make system selection easier for projects across Malaysia.
Can the same system be used for both steel columns & beams?
Yes. The published PROMATECT®-H system includes tested encasement details for both structural steel columns and structural steel beams when installed in accordance with the approved tested assembly.
How is the required board thickness determined?
The required board thickness is selected according to the structural steel Hp/A ratio and the required fire resistance period, following the published PROMAT design tables and tested assembly.
Are there size limitations for the structural steel sections?
Yes. The published installation methods are suitable for steel sections up to 686mm deep and 325mm wide. For larger steel sections or multiple sections within a single encasement, contact PROSAFE for technical guidance here.