Fire and blast resistant


Fully-certified and customizable windows

Our G21 Fire Window is available in all fire ratings (A0, A60, H0, H60 and H120) according to IMO/SOLAS regulations. The windows are available in a variety of sizes and, with additional modifications, jet fire resistant windows can be supplied. The windows can be further upgraded for blast resistance according to your specific requirements. In addition, our A60 type approved window is Fire-Post-Blast certified.

Our heavy duty fire rated window units are supplied with the following specifications:

  • Glass as a sealed unit with a minimum of 8 mm toughened glass
  • An internal frame made from seaworthy aluminum
  • An external frame made from mild or stainless steel
  • Standard sound insulation of 48 dB (upgrades are available upon request)
  • Standard U-value 2.7 W/m²°C (upgrades are available upon request)
  • Installation for welding or bolting

Besides fire- and blast protection, there is a rising demand for bullet resistance. Our windows can also be supplied as bulletproof up to class BR7.

Want to know more about our Fire and Blast resistant windows?

Download all the information you need.


InterDam B.V.
Benedenrijweg 186
2987 VB Ridderkerk
The Netherlands
T: +31 (0) 180 470030

North America

InterDam Americas Inc.
19998 Hickory Twig Way
Spring, TX 77388
United States
T: +1 281-882-8302

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