No products in the basket.
Fibre Cement Boards A1 Fire Rated
Price range: £360.00 through £3,875.00 Exc. VAT
INTERESTED IN BECOMING A ROMA INSTALLER OR STOCKIST?
Sign Up For A Trade Account HERE
Sign Up For A Trade Account HERE
- ALL IN STOCK – Next Day Delivery
- Available in 6mm, 9mm, 12mm Thickness
- Palletised Delivery To Mainland UK Included
- Replacement For Plywood & Plasterboard
- A1 Fire Rated – Non-Combustible
- Complies To British Standards (BS 476-4 Grade A)
Additional delivery charges may apply outside UK mainland.
- Lightweight & Easy To Handle
- 1200 × 800mm (6mm / 9mm / 12mm Depth Options)
- Works In Wet, Dry, Hot, Cold, Or Humid Conditions
- Suitable For Internal & External Use
- Non-Combustible (A1 Fire-Rated)
- Resistant To Water & Mould
- Simple To Store & Work With
- Fix With Adhesive, Screws, Tape, Or Drylining
- Excellent Sound Insulation & Impact Resistance
Fibre Cement Boards
A1 Non-Combustible Fire Resistance
Ideal for structural applications on floors, walls, or ceilings—indoors or outdoors.
These fibre reinforced cement boards are a superior replacement for plywood and plasterboard, offering A1 Non-Combustible Fire Resistance, exceptional strength, and long-term dimensional stability.
Unlike insulation-type backer boards, they are designed to perform as a structural sheathing solution, even in demanding environments.
Cutting & Fitting
- Boards Can Be Scored & Snapped Like Plasterboard, Or Cut With A Hand Or Power Saw (Use Dust Extraction With Power Tools)
- Flexible Install Methods: Fix With Screws, Adhesives, Drylining Systems, Or Joint Taping
- Method Depends On The Substrate, Location, & Intended Finish
- For Project-Specific Applications, Contact Our Technical Team
Usage
- Suitable For Wet Rooms, Behind Stoves / Fireplaces, High-Impact Areas, & External Facades
- Resistant To Fire, Moisture, & Mould — Performs Reliably In Hot, Cold, Wet, Or Dry Conditions
- Direct Fixing To Solid Substrates
- On Stud Walls Or Suspended Ceilings: 9mm or 12mm Boards Recommended For Added Strength, Rigidity, & Soundproofing
- For Maximum Performance: Use A 6–12mm Base Layer Topped With A Staggered 12mm Layer To Reinforce Joints, Improve Acoustic Insulation, & Enhance Fire Resistance
- Accepts A Wide Range Of Finishes: Paint, Tiles, Stone, Plaster, Render, Screed, Cladding, & More
Technical Data
- Fire Rating: A1 Non-Combustible (EN 13501-1)
- Density: Approx. 1250–1450 kg/m³ (depending on thickness)
- Moisture Resistance: Dimensionally Stable In Wet Or Humid Conditions
- Thermal Conductivity: ~0.30 W/mK
- Compressive Strength: >15 MPa
- Thicknesses Available: 6mm, 9mm, 12mm
- Edge Detail: Square Edge For Easy Jointing & Finishing
- Applications: Structural Sheathing, Partitions, Ceilings, External Facades, Fire Protection Layers
Need Advice?
Our team at Roma can help you choose the right fibre cement board for your project. Whether structural, fire-rated, or multi-layer applications, we’ll guide you to the most effective solution.
Call Us On 01803 316131
These are A1 non-combustible fibre reinforced cement boards, 1200 x 800mm, in 6mm, 9mm and 12mm, sold by the pallet: 25, 50, 75, 100 or 150 boards with delivery to mainland UK included in the price. They replace plywood and plasterboard as a structural sheathing board on floors, walls and ceilings, inside or out, wet or dry, and they will not burn, rot or swell. Trade and stockist accounts get trade pricing on every pallet size.
Is cement board fireproof?
Fibre cement board is non-combustible. These boards carry the A1 classification, the highest reaction to fire class there is, and comply with BS 476-4 Grade A. That means the board itself does not contribute to a fire, which is why it is specified where plasterboard or plywood would not pass: fire-rated linings, boiler rooms, plant areas, external sheathing and anywhere the building control officer wants a non-combustible board. The rating belongs to the board; the fire performance of a finished wall or floor depends on the whole build up, so check the detail for the job.
Which thickness
All three are the same board at different weights, and 6mm is the lightest to handle. Which one a job needs depends on what the board is doing, the substrate and the span, so if the detail does not say, send it to the technical team before you order the pallet and we will tell you.
Buying fibre cement board by the pallet
The smallest order is 25 boards, which is 24 square metres, and the price shown includes palletised delivery to mainland UK. The boards score and snap like plasterboard or cut with a hand or power saw, with dust extraction on power tools, and fix with screws, adhesive, a drylining system or taped joints depending on the substrate and finish. Trade accounts get trade pricing on all five pallet sizes and the 10% first order discount applies to this product like any other.
Fibre cement board questions we get asked
Can I buy a single sheet?
Not from us online: the boards go out on pallets of 25 and up, with delivery included. For one or two sheets, a local builders’ merchant is the better buy. For a job that needs 24 square metres or more, the pallet works out well because the delivery is in the price.
Can fibre cement board be used outside?
Yes. The board is made for internal and external use and is resistant to water and mould, so it is used as external sheathing and in wet areas as well as on dry internal walls and floors.
Can I tile onto it?
It is a cement based board, so tiling onto it is a normal use, but the right adhesive and build up depend on where it is going and what is under it. Ask the technical team with the detail and we will tell you what works.
Is this the same as a tile backer board?
No. Our tile backer boards are insulation boards, a foam core with a cement coating, made to put under underfloor heating and tiles. These fibre cement boards are solid structural boards for sheathing, fire-rated linings and floors. Different job, different board.
Additional information
| Density | Approx. 1250–1450 kg/m³ (Depending On Thickness) |
|---|---|
| Thermal Conductivity | ~0.30 W/mK |
Technical Information
Fibre Reinforced Cement Boards
A1 Non-Combustible Structural Sheathing Board
1. Product Description
Fibre Reinforced Cement Boards are high-performance, A1 non-combustible construction boards designed for structural applications in floors, walls, and ceilings, suitable for both internal and external use.
Manufactured from cement reinforced with fibres, these boards provide exceptional mechanical strength, dimensional stability, and fire performance. They are a superior alternative to plywood and plasterboard and are engineered to function as a structural sheathing solution rather than an insulation-type backer board.
2. Key Features
A1 Non-Combustible Fire Resistance (EN 13501-1)
Structural-grade performance
High impact resistance
Moisture and mould resistant
Suitable for internal and external applications
Excellent dimensional stability
Compatible with a wide range of finishes
Square edge profile for easy jointing
3. Technical Data
| Property | Value |
|---|---|
| Fire Classification | A1 Non-Combustible (EN 13501-1) |
| Density | Approx. 1250–1450 kg/m³ (depending on thickness) |
| Thermal Conductivity (λ) | ~0.30 W/mK |
| Compressive Strength | >15 MPa |
| Moisture Resistance | Dimensionally stable in wet and humid conditions |
| Thicknesses Available | 6mm, 9mm, 12mm |
| Edge Detail | Square Edge |
| Reaction to Mould | Resistant |
| Application Type | Structural Sheathing |
4. Applications
Suitable for use in:
Structural sheathing systems
Internal partitions
Suspended ceilings
External facades
Wet rooms and bathrooms
Behind stoves and fireplaces
High-impact areas
Fire protection layers
Stud Walls & Ceilings
9mm or 12mm boards recommended for increased strength, rigidity, and improved acoustic performance.
For enhanced fire and acoustic performance:
Install a 6–12mm base layer
Overlay with a staggered 12mm top layer to reinforce joints and improve performance
5. Installation Guidelines
Cutting
Score and snap (similar to plasterboard), or
Cut using hand or power saw
Use dust extraction when cutting with power tools
Fixing Methods
Installation method depends on substrate, location, and final finish. Boards can be fixed using:
Mechanical screws
Adhesives
Drylining systems
Joint taping systems
Boards may be directly fixed to solid substrates.
For project-specific installation guidance, consult the technical team.
6. Finishing Options
Boards accept a wide range of finishes including:
Paint
Ceramic tiles
Natural stone
Plaster
Render
Screed
Cladding systems
Decorative finishes
7. Performance Summary
These fibre cement boards are engineered to perform reliably in hot, cold, wet, and dry environments. Their structural strength, fire resistance, and moisture stability make them suitable for demanding applications where traditional plasterboard or plywood would be inadequate.
8. Storage & Handling (Recommended)
Store flat on a dry, level surface
Protect from prolonged exposure to weather prior to installation
Handle with care to prevent edge damage
9. Technical Support
For specification support, detailing guidance, or project-specific advice, please contact our technical team.