• Fireboard

New to Marmox for 2024, the Marmox Fireboard offers a multipurpose solution for both internal and external applications!

A game-changer in construction defence. Marmox Fireboard is a powerhouse solution, designed to tackle fire hazards, intrusive noise, and the biting cold, all in one lightweight, easy-to-handle board. Fireboard is adaptable enough to effortlessly fit into both interior and exterior spaces, enhancing walls and ceilings.

So, what sets it apart?

A1 fire protection, sound absorption and thermal insulation all in a thin, lightweight yet rigid board, which is weather resistant and will not degrade - however wet it gets! To top it off, no pre treatment is needed - you can render or plaster directly onto it. Sound too good to be true?

Technical data and key information

Mineral Wool
Dimensions (mm)
1200 x 600
Thickness (mm)
20, 50, 100
Sound Reduction
Up to 23db
Thermal Conductivity (W/mK)
  • Fireproof any metal, masonry or wood
  • Alternative to plaster board
  • Fire, Sound & Thermal protection
  • Plaster or Render
  • Weather Resistant
  • Lightweight
View Full Technical Data View Specifications

Use as a Render Board

Marmox Fireboard can be fitted to masonry, timber or steel frame constructions. Available in 20mm, 50mm and 100mm, Fireboards are rigid enough to be fitted directly to timber batons, yet they are easy enough to cut with a hand saw and lightweight enough to be installed single handed. Once installed the joints are taped with Marmox mesh tape.

Use on Ceilings

Line ceilings with Fireboard to help prevent the spread of fire from floor to floor in multi-storey buildings. As thin as 20mm, Fireboards can be easily installed and then finished off with a coat of plaster, ready to paint. With impressive acoustic properties, they help prevent airborne sound from noisy neighbours.

What are Fireboards made from?

Made using a blend of Marmox mineral stone wool, which is then coated on the sides with a fibreglass mesh embedded in our unique Marmox honeycomb cement based surface. This has been tried and tested for many years on our popular Marmox Multiboards. This offers an ideal surface for applying a finish coat of render or plaster.

Related applications



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Thermal insulation

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Talk to us today to discuss your requirements with one of our experienced and friendly team