Home > Fire-Rated Doors
Fire-Rated Doors EI – Supply & Installation
At ZNB Systems, we undertake the supply and specialized installation of certified EI fire-rated doors, in compliance with European standards EN 1634-1 and EN 16034. We deliver complete passive fire protection solutions for technical projects and buildings of all types, with applications throughout Greece.
Fire-rated doors are a key element of passive fire protection and are required by legislation in stairwells, boiler rooms, electrical rooms, storage areas and fire compartments, helping to limit the spread of fire and smoke.
✔️ Steel & glazed EI fire-rated doors
✔️ Certified solutions in accordance with EN 1634-1 & EN 16034
✔️ Supply & specialized installation throughout Greece
Key Control Points to Check Before Selecting a Fire-Rated Door
Before selecting and supplying a fire-rated door, specific technical parameters must be reviewed to ensure the proposed solution is fully compliant with the passive fire protection study and the project requirements.
-
The required fire resistance rating (EI60, EI90, EI120) as defined by the passive fire protection study
-
The relationship between wall fire rating and door fire rating, including any permitted deviations
-
Certification of the door as a complete tested system (leaf, frame, hardware)
-
The wall type where the door will be installed (concrete, masonry, drywall systems)
-
The permitted tested installation configurations
-
Smoke control requirements (Sa / Sm), where applicable
-
Specialized installation as a condition for compliance
Fire Rating Relationship Between Wall and Fire-Rated Door
In certain cases, regulations allow the fire-rated door to have a lower fire resistance rating than the wall in which it is installed (typically up to 30 minutes), provided this is defined in the passive fire protection study and the corresponding tested installation configuration is applied.
Verifying the above parameters prior to procurement helps prevent failures, inspection rejections, and compliance issues at the final stage of the project.
Steel Fire-Rated Doors EI60–EI120
Steel fire-rated doors are the most common and reliable solution in passive fire protection projects, combining high mechanical strength, stable performance under fire conditions, and installation flexibility across different wall types.
At ZNB Systems, we provide the supply of EI60, EI90 and EI120 steel fire-rated doors, certified according to European standards, with applications in projects throughout Greece.
Typical Technical Specifications
-
Fire resistance: EI60 / EI90 / EI120
-
Leaf and frame made of galvanized or painted steel
-
Certification according to EN 1634-1 & EN 16034
-
Single-leaf or double-leaf configurations available
-
Prepared for self-closing device installation
-
Smoke control capability (Sa / Sm) where required
-
Compatibility with different wall types (concrete, masonry, drywall systems)
Technical specifications and permitted installation configurations may vary depending on the manufacturer and the certified system, and are documented through the relevant test certificates.
Supply with Technical Responsibility
Selecting the appropriate steel fire-rated door is not based solely on dimensions and EI classification. It requires reviewing the passive fire protection study, the wall type, and the permitted tested installation configurations to ensure the solution is fully compliant with the project requirements.
Specialized Installation
& Compliance
The installation of steel fire-rated doors is carried out by specialized teams, in accordance with the manufacturer’s instructions and the tested anchoring configurations.
Proper installation is a key requirement for maintaining certification validity and is subject to verification during project handovers and fire safety inspections.
Applications in Projects
Steel fire-rated doors have been installed by our company in stairwells, boiler rooms, electrical rooms and fire compartments, in projects across Thessaloniki, Athens and throughout Greece.
🔗 See also: Steel fire-rated doors in standard sizes – available for immediate delivery
Specialized Fire-Rated System Solutions
Beyond standard fire-rated doors, specialized passive fire protection solutions are available for specific architectural and functional requirements, implemented in accordance with the project’s passive fire protection study.
Sliding Fire-Rated Doors
Suitable for large openings and industrial or specialized areas where the use of hinged fire-rated doors is not feasible.
🔗 Read more: Sliding fire-rated doors
Fire-Rated Security Doors
They combine certified fire protection with increased requirements for mechanical strength and access security.
🔗 Read more: Fire-rated security doors
Fire Curtains
Flexible passive fire protection solutions for compartmentation without permanent structural elements.
🔗 Read more: Fire curtains
Fire-Rated Roller Shutters
Certified fire-rated roller shutters for industrial and commercial applications with high fire resistance requirements.
🔗 Read more: Fire-rated roller shutters
Certifications & Project Deliverables
The supply and installation of fire-rated doors within a project require documented compliance with applicable European standards and the passive fire protection study.
For every application, ZNB Systems provides the necessary technical documentation and certifications, ensuring proper installation and enabling verification by supervising engineers and relevant authorities.
Typical Fire-Rated Door Deliverables
-
Fire resistance test certificates according to EN 1634-1
-
Declaration of Performance (DoP) and CE marking in accordance with EN 16034
-
Technical datasheets and system certifications
-
Manufacturer’s installation instructions
-
Installation compliance certificate (where required)
-
Photographic documentation of project applications
Deliverables may vary depending on the type of fire-rated door and the specific project requirements, and they constitute a key element for completing fire safety inspections and final project handover.
Proper documentation is just as important as selecting the right fire-rated door.
Glazed Fire-Rated Doors
Glazed fire-rated doors are used in areas where passive fire protection is required together with natural light and architectural transparency. They are applied in commercial and public buildings when specified by the passive fire protection study.
Frequently Asked Questions about Fire-Rated Doors
The EI classification indicates the fire resistance duration in minutes, according to European testing standards. The “E”refers to integrity against flames, while “I” relates to thermal insulation, limiting the temperature rise on the non-fire-exposed side of the door.
The required fire resistance rating is defined by the project’s passive fire protection study and is not selected arbitrarily. The final choice is made in coordination with the fire safety designer or the supervising engineer.
In certain cases, the door may have a fire resistance rating up to 30 minutes lower than the wall, provided this is defined in the passive fire protection study and the corresponding certified installation configuration is applied.
Yes. Proper installation is a fundamental requirement for maintaining certification validity and must be carried out in accordance with the manufacturer’s instructions and the tested systems.
Typically, these include fire resistance test certificates, the Declaration of Performance (DoP), technical datasheets and installation instructions, which are required for the completion of fire safety inspections.
Steel fire-rated doors are primarily used for functional applications and high mechanical durability, while glazed fire-rated doors are selected when transparency and architectural aesthetics are required, always in accordance with the fire protection study.