CONTRAFLAM
CONTRAFLAM fire-resistant glass is a versatile and highly effective fire protection solution designed for applications that demand maximum EI-class protection in large dimensions. Whether for interior or exterior applications, this fire-rated glazing provides full heat insulation, preventing fire spread while maintaining transparency under normal conditions.
Composed of single or multi-chamber toughened safety glass, CONTRAFLAM features a UV-stable, transparent, intumescent interlayer that reacts when exposed to heat. Upon activation, it expands into an opaque barrier, blocking fire, heat, and smoke for up to 120 minutes, helping protect people and property.
Attributes & Benefits
- Available in single (mono) & double (DGU) glazing
- Full range of fire-rated classifications from EI30 up to EI120
- Available in large dimensions (2300mm x 3800mm and 2300mm x 4600mm for CONTRAFLAM Mega for specific requirements)
- Symmetrical 1(B)1 impact resistance (EN 12600)
- Extended exposure time of 5000 hours UV stability versus standard 2000 hours (EN ISO 12543-4)
- Largest variety of low-E and solar control coatings for external applications
- Exceptional U values (double glazing ≥ 0.9 W/m²K, triple glazing ≥ 0.5 W/m²)
- For interior and exterior applications (under specific conditions)
- Moisture- and pressure-resistant edge sealing for extended durability
- Excellent acoustic insulation properties
- Many design and comfort options (multifunctionality)
- Symmetrical fire performance
- Vertical, slopped and horizontal applications
- Can serve as laminated safety glass (EN 14449 and EN ISO 12543)
- Easy, secure handling and installation
- Portrait and landscape applications tested
- Manufactured locally for fast delivery and reduced CO2 emissions
Performances
When exposed to fire, CONTRAFLAM fire-resistant glass activates its transparent intumescent interlayer, which expands into a heat-blocking, opaque foam. This prevents heat transfer for up to 120 minutes, ensuring compartmentalisation of fire and limiting fire spread.
With high UV stability, impact resistance, and extended durability, CONTRAFLAM is the gold standard in fire-rated glass solutions.
Interior applications
Product | Fire resistance classification | Thickness | Weight (kg/m2) | Light transmission to EN 410 | Sound reduction to EN 673 (Rw dB) | Safety according to EN12600 |
---|---|---|---|---|---|---|
CONTRAFLAM 30-2 | EI30 | 20 mm | 44 | 84% | 41 | 1(B)1 |
CONTRAFLAM 60-3 | EI60 | 27 mm | 59 | 82% | 43 | 1(B)1 |
CONTRAFLAM 90-4 | EI90 | 40 mm | 82 | 79% | 46 | 1(B)1 |
CONTRAFLAM 120-5 | EI120 | 54 mm | 115 | 74% | 47 | 1(B)1 |
*measured or calculated
Exterior applications
Product | Fire resistance classification | Thickness | Weight (Kg/m2) | Light transmission to EN 410 | Sound reduction to EN 673 (Rw dB) | Solar Factor to EN 410 | Safety according to EN 12600 |
---|---|---|---|---|---|---|---|
CONTRAFLAM 30-2 Climaplus | EI30 | 38 mm | 59 | 65% | 40 | 0.36 | 1(C)1/1(B)1 |
CONTRAFLAM 60-3 Climaplus | EI60 | 45 mm | 74 | 63% | 42 | 0.36 | 1(C)1/1(B)1 |
CONTRAFLAM 90-4 Climaplus | EI90 | 58 mm | 97 | 60% | 44 | 0.35 | 1(C)1/1(B)1 |
CONTRAFLAM 120-5 Climaplus | EI120 | 72 mm | 130 | 57% | 45 | 0.35 | 1(C)1/1(B)1 |
*measured or calculated
Performance table info
* These are only examples of possible make-ups. According to dimensions & weight, these values will change. Please contact us for precise values.
** The values shown are without tolerances.
Data provided in this table is for a standard solution and will vary according to selected configurations and options. All our solutions can be customised based on our extensive variety of options able to meet virtually any project requirement.
For more information, please contact us.
Customisation
All characteristics described above are examples. All our products and systems can be customised to meet your specific needs. Vetrotech provides design-assist support that ensures your project meets your requirements and design goals.
Together, let’s make your project unique!

Applications
CONTRAFLAM fire-resistant glass is designed for a wide range of applications, offering exceptional protection without compromising aesthetics. It is commonly used in fire-rated doors, screens, partitions, and fire-resistant floors to create safe and transparent spaces.
Additionally, it is ideal for skylights and other overhead glazing solutions where fire protection and natural light are both priorities. Whether installed in commercial buildings, public facilities, or high-end architectural projects, CONTRAFLAM ensures compliance with fire safety regulations while delivering a seamless and elegant finish.
Fire testing video
Want to see for yourself how CONTRAFLAM glass reacts when in contact with fire? Watch our fire test demonstration video.

Downloads
You’ll find more documents in our Download center
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What is the testing standard for CONTRAFLAM?
CONTRAFLAM undergoes fire resistance tests in accordance with international standards. It is subjected to temperature and pressure conditions as specified in the standards to ensure it can contain flames and smoke for the rated duration as well as limit the unexposed side temperature.
What are the different classes of CONTRAFLAM?
CONTRAFLAM offers fire ratings from EI30 to EI120, meaning it can provide insulation during a fire exposure period for 30 to 120 minutes, depending on the classification.
Can CONTRAFLAM be customised for specific applications?
Yes! Vetrotech offers customisation options to match architectural and safety requirements, including design, comfort and sustainability modifications.
What is the maximum size for CONTRAFLAM?
Standard sizes go up to 2300mm x 3800mm, while CONTRAFLAM Mega extends up to 2300mm x 4600mm for specific requirements.
Can CONTRAFLAM be used in outdoor applications?
Yes, under specific conditions. Our CONTRAFLAM Climaplus can be used in external applications as per requirements.
Related Classification
EW classification
Class EW (Integrity & Radiation) fire-rated glass reduces the transmission of radiant heat, limiting fire spread and creating safer separation distances.
E classification
Class E (Integrity only) fire-resistant glass acts as a barrier to prevent flames, smoke, and toxic gases from passing through.
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