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FLOORCLAD® A stone wool insulation board
A1 Fire Rated — Euroclass A1 Non-Combustible
BBABDA AgrémentKiwa

FLOORCLAD®A

Floor Insulation

A high-performance, non-combustible A1 stone wool insulation board designed for multi-occupancy separation floor systems, floating floor profiles, and impact sound reduction.

200
Nominal density
0.039
W/mK conductivity
25–50
Thickness range (mm)

Product description

Floorclad® A is a non-combustible stone wool insulation board engineered specifically to deliver enhanced acoustic insulation and premium impact sound absorption within horizontal separation floor systems. Manufactured from volcanic basalt rock, Floorclad A provides exceptional sound dampening, fire resistance, and reliable thermal protection within multi-occupancy horizontal building assemblies.

Euroclass A1 (non-combustible) in accordance with BS EN 13501-1 reaction to fire
Declared thermal conductivity 0.039 W/mK
Nominal density 200 kg/m³

Application

FLOORCLAD®A is specified across Floor Insulation constructions. Typical application areas include:

Separation floors between individual residential units, apartments, and multi-occupancy zones
Floating floor constructions requiring high-level impact and airborne sound reduction (UK Building Regs Part E compliance)
Suspended timber floor constructions, intermediate joisted assemblies, and lightweight modular frames
Structural concrete floor assemblies, solid precast units, and beam-and-block configurations demanding premium acoustic absorption
Multi-storey residential developments, commercial offices, and hotels requiring robust acoustic privacy between levels
Buildings of any height requiring an acoustically calibrated, A1 non-combustible structural floor soundproofing board

Documentation

Datasheets, Declarations of Performance, BIM files and certificates for FLOORCLAD®A are available on request from our technical team.

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Product properties

NameValueUnit
Reaction to fire (Euroclass)A1 — non-combustible
Classification standardBS EN 13501-1
Nominal density200kg/m³
Declared thermal conductivity (λD)0.039W/mK
Thickness range25–50mm

Full property schedule (water absorption, vapour resistance, compressive strength, dimensional stability) available on request.

Product variants

Product codeThickness (mm)Width (mm)Length (mm)Pieces / pallet (pcs)m² / pallet (m²)
TWTY200025 25 6001200 36 34.56
TWTY200030 30 6001200 36 34.56
TWTY200050 50 6001200 30 28.8

Case study

Project references and case studies featuring FLOORCLAD®A are available on request.

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Speak to an expert

Our technical team can help you specify FLOORCLAD®A for your project.

Phone: 020 3949 8826
Email: [email protected]

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Find a stockist

Locate your nearest Thermawool stockist or distributor for availability and lead times across the UK.

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Our locations

Head Office
1 Bedlam Mews, London, SE11 6DF

Warehouse
Unit 1, Mirravale Estate, Dagenham, RM8 1YY

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Specifying FLOORCLAD®A on your project? Our technical team is here to help.