90mm Knauf Rocksilk Flexible Insulation Slab 1200mm x 600mm 4.32m2 Pack

SKU: IWM9987
Brand: Knauf

100mm Knauf Insulation Rocksilk Flexible Slab is a Rock Mineral Wool slab, designed for use in multiple thermal and acoustic applications as well as the fire protection of a loft conversion floor. It is non-combustible with the best possible Euroclass A1 reaction to fire classification.

POA

Special Order | Lead time to be confirmed days

Lead time to be confirmed

The average delivery lead time for the majority of orders is 2-5 working days from the date of your order, however, it could extend to 5 working days on rare occasions. Once the order has been placed, a member of staff will then be in contact to confirm a delivery date.

The following delivery fees apply to green delivery area.

  • Order between £0.01 - £249.99 ex VAT subjected to a delivery charge £90 ex VAT.
  • Order value between £250 £549.99 ex VAT delivery charge £50 ex VAT.
  • Free delivery is available for orders above £550.00 ex VAT to the green areas on the map.
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Delivery lead times for orders outside our standard delivery may take up to 7 working days. If you are outside our standard green delivery area, please click on the “Save & Share cart” button at the cart stage, select the email option and send it to [email protected] or call us on 0203 318 7316. We will get back with a delivery quote to you shortly.

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100mm Knauf Insulation Rocksilk Flexible Slab is a Rock Mineral Wool slab, designed for use in multiple thermal and acoustic applications as well as the fire protection of a loft conversion floor. It is non-combustible with the best possible Euroclass A1 reaction to fire classification.

  • Additional information

    Brand Knauf
    Amount 4.32
    Total pack coverage

    4.32m2

    Single Product Coverage

    0.72m2

    Thickness

    90mm

    Width

    600mm

    Length

    1200mm

    Application

    Floor, Walls

    Features

    Acoustic, Non combustible, Thermal

    Material

    Rock Mineral Wool

    Product type

    Slab

    Fire Rating

    Euroclass A1 – BS EN 13501-1

    Thermal conductivity

    0.037 W/mK

  • Description

    Product Information

    Rocksilk® Flexible Slab is a Rock Mineral Wool slab, designed for use in multiple thermal and acoustic applications as well as the fire protection of a loft conversion floor. It is non-combustible with the best possible Euroclass A1 reaction to fire classification, and is manufactured using Knauf Insulation’s unique bio-based binder, ECOSE® Technology. Rocksilk® Flexible Slab is odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria. The product will have a life equivalent to that of the structure in which it is incorporated.

    Benefits

    • Multi-purpose product which can be used to insulate a wide range of applications on site.
    • Flexible on all four sides for quick and simple installation.
    • Existing ceilings can be retained on a loft upgrade whilst meeting building regulations.

    Application

    Rocksilk® Flexible Slab is typically used for the thermal and acoustic insulation of a wide variety of constructions such as timber and metal stud partitions, timber frame walls and suspended timber floors. Rocksilk® Flexible Slab has been tested to provide 60 minutes fire protection when a loft is upgraded into habitable accommodation.

    • Multi-Application
    • Ground floors
    • Internal floors
    • Separating floors
    • Pitched roofs at rafter level
    • Internal walls / partitions
    • Light steel frame walls
    • Timber frame walls
  • Data Sheet

    View

    Declaration of Performance

    View
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    Most of our orders come from customers who’ve bought before. Here’s why they keep coming back, drawn straight from their reviews.

    Customer service
    Knowledgeable staff, always happy to help
    Delivery speed
    Fast and reliable
    Product range
    Widest range, incl. hard-to-find insulation types kept in stock
    Trade accounts
    Buy now, pay later option
    Bespoke supply
    Sourcing materials to order at competitive price
    Quantity calculation
    Free help working out exact quantities, less waste
    Wholesale prices
    Competitive trade pricing for all customers
    Free delivery available
    Free delivery available on orders over £550+Vat
    Open to business & public
    Anyone can order — trade and public alike, no account needed.
    Rated excellent

    With thousands of successfully completed deliveries to building sites and our customers’ homes, we’re trusted to deliver the right product at the right price, on time — backed by a dedicated customer support team.

    We have 3 stores offering Brick, Sheet Materials and Insulation, with access to 1000s of product lines.
    Across all three stores we’ve delivered 100,000+ orders to happy customers since 2019.