FYLLOFYS® Fire Board

FYLLOFYS® Fire Board

Premium protection in every environment. Seal out risk. Seal in confidence.

Fireboard
Overhead conduit going through wall Conduit going through floor

FYLLOFYS® Fire Board

The FYLLOFYS® Fire Board system is a waterproof, lightweight solution for sealing penetrations and protecting structural elements in wet or moisture-prone environments. Where traditional fireboards degrade or lose effectiveness when exposed to water, FYLLOFYS® delivers lasting performance, certified for fire resistance while remaining impervious to damp, humidity and direct water contact. 

Trusted across marine, offshore, transport and civil projects, FYLLOFYS® combines fire safety and water resilience in one system. Its ease of installation and long-term durability make it a reliable choice for both new builds and retrofit works where environmental conditions demand more than standard solutions. 

Key Benefits

  • Up to 2 hours fire resistance – independently tested and certified.
  • Waterproof construction – designed to perform in damp, wet or exposed environments.
  • Lightweight and easy to install – simple handling, cutting and fitting on site.
  • Multi-application use – suitable for sealing penetrations, ducts and structural voids.
  • Durable protection – proven long-term performance with minimal maintenance.

Designed For

  • Marine and offshore installations
  • Civil and commercial buildings
  • Transportation infrastructure
  • Power and utility facilities
  • Damp and high-humidity environments

Useful Information

Find everything you need to specify, install and maintain CSD systems. Access the latest datasheets, certifications and installation guides, all in one place.

The installation advantage

Available as a complete kit with simplified instructions and access to our online installation video hub, the NOFIRNO Duct Seal helps your team get the job done faster and with full confidence. Or, let our CSD Technical Services team handle everything – from design to installation to inspection.

Contact Us
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“The service provided by CSD was excellent in all aspects. The installation crew were skilled, hard-working and resourceful and also integrated well with our own men who supported then with the external duct sealing.”

Project Manager

UK Onshore Wind Farm