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ROCKWOOL Thermalrock S stone wool slab

ROCKWOOL

ROCKWOOL Thermalrock S stone wool slab

ROCKWOOL stone wool slab for general use in homes, commercial buildings and factories — heat, fire and sound — in a range of densities.

Thickness
25–100 mm
Density
40–160 kg/m³
Thermal conductivity (λ)
0.034–0.036 W/m·K at 20 °C · ASTM C518

Choose model and size

1. Choose thickness
2. Choose model (density)
3. Facing (foil or unfaced)

Foil facing is offered for some models and sizes only; we confirm what can be supplied together with the price.

Your selection

ROCKWOOL Thermalrock S120 · Thickness 50 mm

Availability: Please enquire

Sheet size
600 × 1,200 mm60 × 120 cm
Pack
6 sheets / pack
Area per pack
4.32 m²
Density
120 kg/m³
Request a price for this size
Technical values for S120
Thermal conductivity (λ)at 20 °C
0.034 W/m·K
Noise reduction coefficient (NRC)
1.05

See all models and sizesManufacturer documentsTechnical specifications

Product details

Building thermal insulationStone wool (rock wool)ROCKWOOL

General-purpose stone wool slab for heat, fire and sound · 40–150 kg/m³

Thickness
25–100 mm
Density
40–160 kg/m³
Thermal conductivity (λ)
0.034–0.036 W/m·K at 20 °C · ASTM C518
Noise reduction coefficient (NRC)
0.90–1.05 ISO 354

What is it?

Thermalrock S (Slab) is a ROCKWOOL stone wool slab in a range of densities (S40 to S150) for general use in homes, commercial buildings and factories. The data sheet lists 1,200 × 600 mm slabs, 50 / 75 / 100 mm thick, unfaced or with aluminium foil facing.

What is it made of?

Stone wool (rock wool) · Facing: Unfaced, or aluminium foil on one or both sides · Slab

Which sizes are available?

Thickness 25–100 mm · 40–160 kg/m³ — Choose model and size

Where does the data come from?

Thermalrock S (Slab) — 100 309-06/18 V9 (TH)

Technical data from the manufacturer's documents ROCKWOOL · Checked 29 Sept 2026

Technical specifications

Technical values for each model from the manufacturer's data sheet. They apply to every thickness of that model unless a condition is given.

S40

Density
40 kg/m³
Thermal conductivity (λ)at 20 °C
0.036 W/m·K
Noise reduction coefficient (NRC)
1.00

S60

Density
60 kg/m³
Thermal conductivity (λ)at 20 °C
0.034 W/m·K
Noise reduction coefficient (NRC)
1.05

S80

Density
80 kg/m³
Thermal conductivity (λ)at 20 °C
0.034 W/m·K
Noise reduction coefficient (NRC)
1.05

S120

Density
120 kg/m³
Thermal conductivity (λ)at 20 °C
0.034 W/m·K
Noise reduction coefficient (NRC)
1.05

S140

Density
140 kg/m³
Thermal conductivity (λ)at 20 °C
0.034 W/m·K
Noise reduction coefficient (NRC)
0.90

S150

Density
150 kg/m³
Thermal conductivity (λ)at 20 °C
0.034 W/m·K
Noise reduction coefficient (NRC)
0.90

160 kg/m³

Density
160 kg/m³

All models

Reaction to fire
Non-combustible, class A1 (excluding foil)
Moisture absorption
less than 0.04% by volume
Test standards and sources

Models and sizes available

Sheet sizes 60 × 120 cm · thicknesses 25, 50, 75, 100 mm. Sizes differ by model — all are listed below.

S40 · 40 kg/m³

Thickness 50 mm

  • 600 × 1,200 mm60 × 120 cm 8 sheets / pack5.76 m²/packPlease enquire Ask price

S60 · 60 kg/m³

Thickness 50 mm

  • 600 × 1,200 mm60 × 120 cm 6 sheets / pack4.32 m²/packPlease enquire Ask price

S80 · 80 kg/m³

Thickness 50 mm

  • 600 × 1,200 mm60 × 120 cm 6 sheets / pack4.32 m²/packPlease enquire Ask price

S120 · 120 kg/m³

Thickness 25 mm

  • 600 × 1,200 mm60 × 120 cm 12 sheets / pack8.64 m²/packPlease enquireDistributor listing Ask price

Thickness 50 mm

  • 600 × 1,200 mm60 × 120 cm 6 sheets / pack4.32 m²/packPlease enquire Ask price

Thickness 75 mm

  • 600 × 1,200 mm60 × 120 cm 4 sheets / pack2.88 m²/packPlease enquireDistributor listing Ask price

Thickness 100 mm

  • 600 × 1,200 mm60 × 120 cm 3 sheets / pack2.16 m²/packPlease enquireDistributor listing Ask price

S140 · 140 kg/m³

Thickness 50 mm

  • 600 × 1,200 mm60 × 120 cm 4 sheets / pack2.88 m²/packPlease enquire Ask price

S150 · 150 kg/m³

Thickness 50 mm

  • 600 × 1,200 mm60 × 120 cm 4 sheets / pack2.88 m²/packPlease enquireDistributor listing Ask price

Thickness 100 mm

  • 600 × 1,200 mm60 × 120 cm 2 sheets / pack1.44 m²/packPlease enquireDistributor listing Ask price

160 kg/m³ · 160 kg/m³

Thickness 50 mm

  • 600 × 1,200 mm60 × 120 cm 4 sheets / pack2.88 m²/packPlease enquireDistributor listing Ask price

Pack quantities are based on sales information in Thailand. Please confirm the pack contents before ordering. Area per pack = sheet size × sheets per pack.

Applications

WallsStop sound through walls, reduce echo, keep heat outFactoriesFactory roofs, machine noise and hot pipeworkHomesHeat, neighbour noise and echo at home

Highlights

  • Several densities to suit the job
  • Good sound absorption (see NRC by grade)
  • λ 0.034–0.036 W/m·K at 20 °C
  • Class A1 non-combustible (excluding foil)

Manufacturer documents

Thermalrock S (Slab) — 100 309-06/18 V9 (TH)PDF · ROCKWOOL (Thailand) · THROCKWOOL Thailand product page — Thermalrock S (Slab) (product variant table)Web page · ROCKWOOL (Thailand) · TH

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