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

FLOORCLAD®T

Floor Insulation

A high-performance, non-combustible A1 stone wool insulation board engineered for structural floor constructions, ground-bearing slabs, and heavy-duty under-screed thermal lining applications.

150
Nominal density
0.040
W/mK conductivity
50–100
Thickness range (mm)

Product description

Floorclad® T is a non-combustible stone wool insulation board designed primarily for use within structural floor constructions and ground floor assemblies where optimal thermal efficiency is the core requirement. Manufactured from volcanic basalt rock, Floorclad T provides reliable thermal insulation, fire resistance, and structural stability within horizontal building profiles.

Euroclass A1 (non-combustible) in accordance with BS EN 13501-1 reaction to fire
Declared thermal conductivity 0.040 W/mK
Nominal density 150 kg/m³

Application

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

Ground-bearing structural concrete floor assemblies, solid precast units, and beam-and-block systems
Heavy-duty under-screed insulation layers beneath sand-cement or liquid screeds
Intermediate floors separating heated residential spaces from unheated basements, car parks, or crawl spaces
Internal thermal boundaries and structural partition decks demanding high thermal resistance
Ground floor configurations in multi-storey residential blocks, commercial offices, and mixed-use developments
Buildings of any height requiring high-compressive-strength, A1 non-combustible thermal floor insulation

Documentation

Datasheets, Declarations of Performance, BIM files and certificates for FLOORCLAD®T 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 density150kg/m³
Declared thermal conductivity (λD)0.040W/mK
Thickness range50–100mm

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)
TWTY150050 50 6001200 40 57.6
TWTY150080 80 6001200 24 34.56
TWTY150100 100 6001200 30 28.8

Case study

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

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Speak to an expert

Our technical team can help you specify FLOORCLAD®T 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®T on your project? Our technical team is here to help.