Certificates and Standards
Rocksilk® RS45
- Single slab can be used for multiple applications.
- Can be provided with a factory applied foil or tissue facing, offering solutions for a wide variety of applications.
- Manufactured from mineral wool which provides the best levels of sound absorption and reduction compared to other mainstream insulants.
- Manufactured from rock mineral wool which has a melting temperature of over 1000°C to provide longer periods of fire resistance than other mainstream insulants
Applications
Rocksilk® RS45Rock Mineral Wool
Description & Details
Rocksilk® RS45 is a rock mineral wool slab, designed for use in multiple thermal, fire protection and acoustic applications. It is non-combustible with the best possible Euroclass A1 reaction to fire classification, and is manufactured using our unique bio-based binder, ECOSE® Technology.
- Single slab can be used for multiple applications.
- Can be provided with a factory applied foil or tissue facing, offering solutions for a wide variety of applications.
- Manufactured from mineral wool which provides the best levels of sound absorption and reduction compared to other mainstream insulants.
- Manufactured from rock mineral wool which has a melting temperature of over 1000°C to provide longer periods of fire resistance than other mainstream insulants
Multi-Application
Ground floors
Internal floors
Separating floors
Fabrication
Pitched roofs at rafter level
Internal walls / partitions
Light steel frame walls
Timber frame walls
Documents
EN
| Product Data Sheet | ||
|---|---|---|
Rocksilk® RS Building Slabs Datasheet.PDF /
Oct 2025 /
2.29 MB /
6 pages | ||
| Brochure | ||
|---|---|---|
Acoustic Insulation - What You Need to Know.PDF /
Jan 2025 /
3.47 MB /
3 pages | ||
Knauf Insulation Solutions Guide UK.PDF /
- /
21.46 MB /
167 pages | ||
| Safety Data Sheet | ||
|---|---|---|
Rock Mineral Wool with ECOSE® Technology - Safety Data Sheet.PDF /
Sep 2023 /
240.00 KB /
8 pages | ||
| Environmental Product Declaration | ||
|---|---|---|
Knauf Insulation Rocksilk® RS45 EPD S-P-02700.PDF /
May 2021 /
1.24 MB /
16 pages | ||
| Sustainability | ||
|---|---|---|
Rock Mineral Wool - BREEAM Helpsheet.PDF /
Feb 2025 /
40.00 KB /
1 page | ||
Declaration of Performance
- Declaration of performance: R4208LPCPR
- Declarations of performance (DoPs), safety data sheets (SDS), and environmental product declarations (EPD) for our offered products can be found via a central Knauf Insulation database.
Technical Data
| Description | Value | Unit | Norm |
|---|---|---|---|
Thermal conductivity declared | 0.035 | W/(mK) | |
Reaction to fire | A1 | EN 13501-1 |
Product Variants & Packaging
Rocksilk® RS45
| Material number | EAN / GTIN | R-Value | Thickness | Width | Length | Pieces per pack | m2 per pack | Pieces per pallet | Packs per pallet | m² per pallet |
|---|---|---|---|---|---|---|---|---|---|---|
2411325 | 5012061826548 | 0.70 (m²K)/W | 25 mm | 600 mm | 1,200 mm | 20 pc/pac | 14.40 m²/pac | 240 pc/pal | 12 pac/pal | 172.80 m²/pal |
2411424 | 5012061827354 | 0.85 (m²K)/W | 30 mm | 600 mm | 1,200 mm | 16 pc/pac | 11.52 m²/pac | 192 pc/pal | 12 pac/pal | 138.24 m²/pal |
2411326 | 5012061826555 | 1.10 (m²K)/W | 40 mm | 600 mm | 1,200 mm | 12 pc/pac | 8.64 m²/pac | 144 pc/pal | 12 pac/pal | 103.68 m²/pal |
2411327 | 5012061826562 | 1.40 (m²K)/W | 50 mm | 600 mm | 1,200 mm | 10 pc/pac | 7.20 m²/pac | 120 pc/pal | 12 pac/pal | 86.40 m²/pal |
2411425 | 5012061827361 | 1.70 (m²K)/W | 60 mm | 600 mm | 1,200 mm | 8 pc/pac | 5.76 m²/pac | 96 pc/pal | 12 pac/pal | 69.12 m²/pal |
2411328 | 5012061826579 | 2.10 (m²K)/W | 75 mm | 600 mm | 1,200 mm | 6 pc/pac | 4.32 m²/pac | 72 pc/pal | 12 pac/pal | 51.84 m²/pal |
2411339 | 5012061826661 | 2.85 (m²K)/W | 100 mm | 600 mm | 1,200 mm | 5 pc/pac | 3.60 m²/pac | 60 pc/pal | 12 pac/pal | 43.20 m²/pal |
531096 | 5012061956146 | 4.25 (m²K)/W | 150 mm | 600 mm | 1,200 mm | 3 pc/pac | 2.16 m²/pac | 36 pc/pal | 12 pac/pal | 25.92 m²/pal |