FIRE SLABS

Fire slabs are rigid stone wool insulation boards designed to provide non-combustible fire resistance with a Class ‘O’ fire rating. They effectively slow down fire spread while also offering thermal and acoustic insulation. Fire slabs are classified by density: 45kg/m³, 60kg/m³, and 100kg/m³. The higher the density, the better the soundproofing performance.

FIRE SLAB FINISHES

• Standard Fire Slabs – Made of fire-resistant stone wool for general applications.
• Black Tissue Faced (BTF) Slabs – Laminated with mineralized glass fiber fleece for enhanced durability.
• Black Aluminum Foil (BAF) Slabs – Traps heat on one side, ideal for exposed soffits and ceiling installations.
• White Tissue Faced (WTF) Slabs - Offering a clean, bright finish for applications where aesthetics are important while maintaining fire resistance.
• Aluminium Foil Faced - Provides heat retention and minimizes fibre release.

FIRE SLABS SIZES & APPLICATIONS

Available in thicknesses:

• 25mm
• 30mm
• 40mm
• 50mm
• 60mm
• 75mm
• 90mm
• 100mm 
• 120mm
• 150mm, 

with standard sizes 1000x600mm or 1200x600mm.

Installed in:

• ceilings,
• underfloor parking
• partition walls, 
• floors, 
• attics, 
• offshore platforms, 

It is important to regularly check the current regulations and contact the manufacturers of fire slabs for the most up-to-date information. a1firerated.co.uk is not responsible for any inaccuracies or outdated information provided here.