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Knauf Rocksilk Flexible Slab - Mineral Wool Insulation

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Product Specification:

  • Length: 1200mm
  • Width: 600mm

Thickness

Pieces per Pack Roll Coverage(sqm)

50mm

12

8.64

70mm

8

5.76
100mm 6 4.32

140mm

3

2.16

 

Knauf Insulation's Rocksilk Flexible Insulation Slab, a rock mineral wool slab designed to meet your thermal, acoustic, and fire protection needs. This versatile Rocksilk® Flexible Slab is manufactured using Knauf's state-of-the-art technology and offers Euroclass A1 reaction to fire classification, ensuring exceptional fire safety. This non-combustible insulation is not only flexible on all four sides, reducing air gaps for real performance benefits but also has been tested to provide 60 minutes of fire protection, making it an ideal choice for the fire protection of a loft conversion.

In addition to its fire-resistant properties, Rocksilk Flexible Slab also excels in acoustic insulation, making it perfect for various applications, including timber and metal stud partitions. You can trust in its durability as it is resistant to vermin and will not encourage the growth of fungi or bacteria. 

Manufactured with eco-friendly ECOSE® Technology, this product is free from formaldehyde and phenol, contributing to indoor air quality. It contains no ozone-depleting substances or greenhouse gases, making it an environmentally responsible choice.

With its adaptability and excellent thermal conductivity, it is designed for use in multiple construction applications. Whether you're insulating timber frame walls, soundproofing suspended timber floors, or enhancing the fire protection of loft conversions, Rocksilk Flexible Slab is a reliable, high-performance solution that complies with industry standards and environmental certifications. Trust in Knauf Insulation's Rocksilk Flexible Insulation Slab to meet your insulation needs, ensuring safety, efficiency, and environmental responsibility.

Rocksilk Flexible Slab complies with industry standards, including BS EN 13162 and environmental certifications. Its adaptability eliminates air gaps for real performance benefits. The product is eco-friendly and easy to handle, with proper storage recommendations.

Key Features:

  •  Versatile Insulation: RockSilk Flexible Slab offers thermal, acoustic, and fire protection for various on-site applications.
  •  Easy Installation: Designed for quick and simple setup, perfect for construction projects.
  •  Fire Resistant: Provides up to 60 minutes of fire protection, meeting safety standards.
  •  Excellent Fire Safety: Achieves the highest Euroclass A1 fire classification, ensuring safety in case of fire.
  •  Eco-Friendly: Made with renewable materials and eco-friendly ECOSE Technology, earning an Indoor Air Comfort certification.

Application

  • Thermal and acoustic insulation for timber and metal stud partitions.
  • Insulation for timber frame walls in residential and commercial buildings.
  • Soundproofing material for use in suspended timber floors.
  • Fire protection of loft conversion floors to meet Approved Document B requirements.
  • Versatile insulation solution suitable for a wide range of on-site applications requiring non-combustible and high-performance insulation.

 Certifications:

  • Tested to EN1365-2 for fire resistance in floor applications.
  • Achieves Euroclass A1 for non-combustibility.
  • Low thermal conductivity and good resistance to water vapor.

Environmental Considerations:

  •  Eco-friendly, containing no ozone-depleting substances or greenhouse gases.

Handling and Storage:

  •  Rocksilk Flexible Slab is lightweight and can be easily handled and cut to size during installation.
  • Rocksilk RainScreen Slab is packaged in recyclable polythene packs (4-LDPE) designed for short-term protection.
  •  For long-term protection on site, the product should be stored indoors or under cover and kept off the ground.
  • It is essential to avoid leaving Rocksilk® Flexible Slab permanently exposed to the elements to ensure its durability and performance.
Insulation Type  Rock Mineral Wool Slab
Brand  Knauf
Product Code  Rocksilk Flexible Slab
Length 1200mm
Width  600mm
Thickness Available

 50mm,70mm,100mm and 140mm

Material  Mineral wool
Thermal Conductivity  0.037 W/mK
Thermal resistance  1.05 - 4 m2K/W
Water Vapour Resistivity  5.00 MNs/g.m
Fire Classification  Euroclass A1 to BS EN 13501-1
Applications  Loft Insulation, rafter, pitched roof, stud wall insulation etc 
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Average Rating
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Free Collections Available
Save on delivery charges and collect the order for free from a warehouse near you. Just choose the In-Store Pickup option at the checkout or call: 03303130245
Free pick-up locations include - Warrington, Wolverhampton, Gatwick, Bedford, Ipswich, Glasgow, Newcastle, Leeds, Chesterfield and Bridgewater.

 

Delivery Terms
Order Value (Excluding VAT) Delivery Charge (Excluding VAT)
Above  £370 Free Delivery
Up To £370 £50

 

Returns/Refunds And Cancellations:

You can cancel your order and get a full refund before we confirm your order via email. Orders cancelled after the order confirmation email is sent, may attract a restocking fee.

Insulation slabs can be returned, provided they are in a resalable condition within 30 days from the date of receipt. Please contact us via email and we will assist you accordingly.

For more information on returns of faulty/damaged products and deliveries, please refer to our delivery information page.

Product Features

  • Versatile for multiple insulation applications, including thermal, acoustic, and loft conversion fire protection.
  • Euroclass A1 fire classification for non-combustibility.
  • Eco-friendly with Ecose Technology, no formaldehyde, or phenol.
  • Long-lasting and maintenance-free, resisting rot, vermin, and mold.
  • Easy installation with flexibility, eliminating air gaps for optimal performance.
  • Suitable for various constructions like timber partitions, frame walls and suspended timber floors.
Knauf Rocksilk Flexible Slab
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Knauf Rocksilk Flexible Slab is a type of mineral wool insulation that is designed to provide thermal and acoustic insulation for buildings.

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In Store Pickup Available
Save on delivery charges and collect the order for free from a warehouse near you. Just choose the In Store Pickup option at the checkout.
Free Collections Available
Save on delivery charges and collect the order for free from a warehouse near you. Just choose the In-Store Pickup option at the checkout or call: 03303130245
Free pick-up locations include - Warrington, Wolverhampton, Gatwick, Bedford, Ipswich, Glasgow, Newcastle, Leeds, Chesterfield and Bridgewater.

 

Delivery Terms
Order Value (Excluding VAT) Delivery Charge (Excluding VAT)
Above  £370 Free Delivery
Up To £370 £50

 

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