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Knauf

Knauf Rocksilk EWI Slab - 1200mm x 600mm - All Thicknesses


£617.37 GBP
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Delivery & Shipping

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Contact

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Returns

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Product Datasheets

Product Datasheet:

Knauf EWI Slab Datasheet

Declaration of Performance:

Knauf EWI Slab DoP

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Things you should know about this product!

  • This product is sold by the pack
  • This product is available in the following thicknesses: 25mm, 40mm, 50mm, 60mm, 75mm and 100mm

Description

Knauf Rocksilk® EWI Slab is a rock mineral wool slab designed for use in external wall insulation systems. These slabs can be adhered and mechanically fixed, or just mechanically fixed to the substrate. Their excellent reaction to fire performance eliminates the need for fire barriers, offering a simple, quick, and economical insulation solution for external wall systems. They are non-combustible with the highest Euroclass A1 reaction to fire classification.

Specifications

  • Length
    1200mm
  • Width
    600mm
  • Material type
    Rock mineral wool
  • Thermal conductivity
    0.036 W/mK
  • Fire rating
    Euroclass A1

Key Features

  • No fire breaks are needed.
  • Rocksilk® EWI Slab Plus offers a denser and more compressively strong option compared to Rocksilk® EWI Slab.
  • Compatible with both silicone and mineral render systems, offering design flexibility.
  • Ideal for applications requiring higher load-bearing capacity.
  • Made from mineral wool, it provides superior sound absorption and noise reduction compared to other mainstream insulants.

Where to use

External Walls: Knauf EWI Slab is an outstanding insulation solution for external walls, offering superior thermal performance, weather resistance, and durability. This high-density glass mineral wool slab provides excellent thermal efficiency, significantly reducing heat loss and contributing to lower energy costs in buildings. Its robust design ensures long-lasting performance and effective insulation, even in harsh weather conditions. The non-combustible nature of Knauf EWI Slab enhances fire safety, a crucial consideration for external applications. Additionally, the slabs are designed to be easy to handle and install, fitting securely to create a continuous insulating layer on external walls. Made from up to 80% recycled materials, Knauf EWI Slab supports sustainability and environmental responsibility. Its excellent thermal and acoustic properties, combined with its durability and fire resistance, make it an ideal choice for external wall insulation, ensuring buildings remain energy-efficient, safe, and comfortable.

Frequently asked questions

  • Does Knauf EWI Slab require a specific finish? - Yes, after installation, Knauf EWI Slab is typically covered with a render or cladding system to protect it from weathering and mechanical damage. The choice of finish can vary based on aesthetic and functional requirements.
  • How does Knauf EWI Slab contribute to acoustic insulation? - Knauf EWI Slab provides excellent sound insulation, helping to reduce noise transmission from outside into the building. This makes it ideal for use in urban areas and buildings where noise reduction is a priority.
  • Is Knauf EWI Slab environmentally friendly? - Yes, Knauf EWI Slab is made from natural and recycled materials and is fully recyclable. It also helps to reduce energy consumption and carbon emissions by improving the thermal efficiency of buildings.

Payment & Security

Payment methods

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Knauf Rocksilk EWI Slab - 1200mm x 600mm - All Thicknesses
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Price
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From £101.68 GBP
Length
Length
1200mm
1200mm
Width
Width
600mm
600mm
Edge
Edge
n/a
Square
Fire rating
Fire rating
Euroclass A1
Euroclass C
Compressive strength
Compressive strength
n/a
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Thermal conductivity
Thermal conductivity
0.036 W/mK
0.021 W/mK - 0.022 W/mK
Material type
Material type
Rock mineral wool
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Knauf

Knauf Rocksilk EWI Slab - 1200mm x 600mm - All Thicknesses

From £535.93 GBP

Length

1200mm

Width

600mm

Edge

N/A

Fire rating

Euroclass A1

Compressive strength

N/A

Density

N/A

Thermal conductivity

0.036 W/mK

Material type

Rock mineral wool
View product