Fire-rated doors with glazing
Fire-rated doors with glazing can include a vision panel if the glazing forms part of a door construction with confirmed fire resistance characteristics. Standard glass or arbitrary changes to the size of the glazed area do not confirm that the declared fire resistance rating of the door will be maintained.
Can fire-rated doors include glazing?
Yes. Fire-rated doors with glazing can be specified in a building project. However, the door leaf and glass should not be assessed separately – the complete door construction and its confirmed configuration are what matter.
If EI30 doors with glazing or EI60 doors with glazing are required, the corresponding rating should apply specifically to the glazed version. A fire resistance rating confirmed for another version of the door should not automatically be assumed to apply to the glazed construction.
Why standard glass is not suitable
Standard glass, including ordinary toughened glass, can break or lose its integrity under the temperatures and exposure times associated with fire testing and does not provide the required E (integrity) and I (insulation) performance. Special fire-resistant glazing is therefore used and must be tested as part of the specific door construction.
What is the purpose of a vision panel?
A vision panel provides visual contact with the area on the other side of the door. Its use may be determined by the functional and architectural requirements of the specific project.
At the same time, glazing should not be treated simply as a decorative element. In a fire-rated door, the version with a vision panel should meet the declared characteristics of the complete construction.
Size and position of the glazing
The size and position of the glazing are defined by the manufacturer for each door model on the basis of the fire test results for that construction. The permitted configuration depends on the specific door version for which the characteristics have been confirmed.
For this reason, there is no universal maximum glazing size for all fire-rated doors. The glazing parameters should be agreed for the selected construction before manufacture.
What to check before ordering fire-rated doors with glazing
| What to check | Why it matters |
|---|---|
| EI rating | Must match the project requirement |
| Glazed version | The rating must be confirmed specifically for this configuration |
| Vision panel size | Permitted dimensions depend on the specific construction |
| Glass position | This is also part of the confirmed configuration |
| Documentation | Confirms the characteristics of the specific product |
How glazing relates to the confirmed door configuration
The fire resistance rating applies to a specific construction and its confirmed configuration. Glazing, its dimensions or other significant parameters should not be changed without checking whether the modified version still corresponds to the declared characteristics.
In practice, this means that when ordering, it is important to check the documentation for the glazed door in the required configuration rather than relying only on the EI designation in the product name.
Where such solutions may be relevant
These solutions may be relevant for buildings where the project requires both fire resistance and visual control – for example, in areas with higher pedestrian traffic or certain technical zones. The exact application is always determined by the project documentation.
Solutions from Euroformat
Euroformat helps select fire-rated doors according to the requirements of the specific building and project documentation. During coordination, it is important to provide the required fire resistance rating, door opening dimensions, glazing requirements and other initial data. This makes it possible to check the available construction version and confirm the vision panel parameters before manufacture and installation.
What should be agreed before ordering
Before placing an order, the fire resistance rating required by the project, the door opening parameters and the glazing requirements should be known. The available version, size and position of the vision panel and other configuration details can then be agreed.
It is also important to check the documentation confirming the characteristics of the specific glazed construction. This allows the door to be ordered in accordance with the project rather than selecting individual components after manufacture.
Need to select fire-rated doors with glazing?
Provide Euroformat with the project requirements, required rating and door opening parameters. The specialists can then confirm whether the required version is available and clarify the parameters of the specific product.
Frequently asked questions
Is the declared fire resistance maintained in doors with glazing?
Yes, provided that the glass is part of the tested door construction rather than added separately after manufacture. The manufacturer confirms the fire resistance rating for the exact configuration that was tested, including the glazing. Replacing the glass with another type without corresponding testing can invalidate that confirmed configuration.
Can ordinary toughened glass be used?
Toughening alone does not confirm that the door construction meets the required fire resistance rating. The glazing should be selected as part of the specific fire-rated door configuration. It should not be replaced independently without checking the confirmed characteristics of the construction.
Can the size of the vision panel be increased independently?
No. The size and position of the vision panel are defined by the fire test results for the specific door model. Increasing the glazed area without agreement with the manufacturer changes the construction and may affect the declared fire resistance. Any such changes should be discussed with the manufacturer before ordering.
Which glazing parameters should be agreed before manufacture?
The need for a vision panel, its dimensions and position should be defined according to the available door configuration. These parameters should be agreed together with the fire resistance rating and the rest of the door specification. The final solution should comply with the project requirements.
Conclusion
Fire-resistant glazing is part of the complete door construction, so it should not be selected or changed separately from the product. The EI rating, size and position of the vision panel and the complete configuration should be agreed for the specific version, while the declared characteristics should be checked against the relevant documentation.