145mm Knauf Rocksilk Krimpact Flat Roof Slab (16-pack)

145mm Knauf Rocksilk Krimpact Flat Roof Slab (16-pack)

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    Additional Info

    Product Code:
    • Speak to an insulation expert:
      Get in touch with us over our LIVE CHAT or 02038839057
    • Application:
      Suitable for use on all types of roof decks
    • Type:
      Rock Mineral Wool slabs
    • Product Size:
      1200mm x 1000mm (16-pack)
    • Thickness:
    • Pack Coverage:
    • Estimated Delivery:
      2-3 Working Days

    Product Description

    145mm Knauf Rocksilk Krimpact Flat Roof Slab (16-pack)

    145mm Knauf Rocksilk Krimpact Flat Roof Slab (16-pack)

    Rocksilk Krimpact Flat Roof Slabs are  high performance, non-combustible Rock Mineral Wool slabs with high compressive strength, suitable for use on all types of roof deck, and can be overlaid either with a single ply membrane which is mechanically fixed, or with a waterproof membrane consisting of either a fully bonded built-up bitumen roofing system, or mastic asphalt. Slabs contain a special additive to ensure their water repellency.

    Product Details

    Thickness: 100mm, 120mm, 145mm, 180mm

    Width: 1000mm

    Length: 1200mm

    Pack coverage: 17.28m2  (16-pack)

    Thermal Conductivity: 0.038W/mK

    Thermal Resistance: 3.80m2K/W

    Compressive Strength: 60kPa

    Reaction to Fire: Euroclass A1

    Application: Flat roof

    Material: Rock Mineral Wool

    Water vapour resistivity: 5.00MNs/g.m


    - Excellent thermal performance.

    - Non-combustible A1 Euroclass Reaction to Fire classification

    - Absorbant nature of the product reduces the drumming effect of rainwater

    - Manufactured using specialist Knauf Insulation Krimpact Technology for high levels of compressive strength and durability

    - The nature of Rock Mineral Wool allows slabs to knit together at joints

    - Dimensionally stable 

    - Compatible with a wide range of single ply membranes

    - 145mm Insulation Slab


    - BBA Certificate 08_4526 Rocksilk Krimpact Flat Roof Slab

    - A1 Euroclass Fire Rating

    - CE Marking

    - Bureau Veritas

    - Green Guide Rating B-C

    Additional Information


    Rocksilk Krimpact Flat Roof Slabs are odourless, non-hygroscopic, rot proof, do not sustain vermin and will not encourage the growth of fungi, mould or bacteria.


    Rocksilk Krimpact Flat Roof Slabs are used for the thermal insulation of flat roofs. Rocksilk Krimpact Flat Roof Slabs are suitable for use under all kinds of single ply membrane, hot applied bitumen systems and mastic asphalt and are suitable for maintenance foot traffic only.


    Rocksilk Krimpact Flat Roof Slabs are manufactured in accordance with BS EN 13162, ISO 50001 Energy Management Systems, OHSAS 18001 Occupational Health and Safety Management Systems, ISO 14001 Environmental Management Systems, and ISO 9001 Quality Management Systems, as certified by Bureau Veritas.


    Rocksilk Krimpact Flat Roof Slabs are British Board of Agrèment certified (certificate no 08/4526) for use as a thermal insulation layer for limited access at roofs with concrete, timber or metal decks.


    Rocksilk Krimpact Flat Roof Slabs represent no known threat to the environment and have zero Ozone Depletion Potential and zero Global Warming Potential.

    Vapour resistivity

    Rocksilk Krimpact Flat Roof Slabs offer negligible resistance to the passage of water vapour and have a water vapour resistivity of 5.00 MN.s.g.m.

    Compressive strength

    Rocksilk Krimpact Flat Roof Slab has a compressive strength of 60 kPa, Rocksilk Krimpact Flat Roof Slab Extra has a compressive strength of 90 kPa.

    Handling and storage

    145mm Flat Roof Slabs are easy to handle and install, and easily cut to size, where necessary. They are supplied in polythene packs which are designed for short term protection only. For longer term protection on site, the product should either be stored indoors, or under cover and off the ground. Rocksilk Krimpact Flat Roof Slabs should not be left permanently exposed to the elements.

    Why Mineral Wool?

    Mineral wool insulation offers a unique combination of thermal, fire and  acoustic performance.

    In addition to its thermal and fire benefits, it is the perfect solution for noise reduction due to its unique fibre matrix. Sound waves become trapped within the fibres, converting them into heat energy, meaning less sound energy passes through increasing the amount of sound reduction. 

    If you want to buy or have any questions about 145mm Knauf Rocksilk Krimpact Flat Roof Slab please call us on 02038839057! You can also text us back in our live chat.

    Please find all datasheets in PDF & BROCHURES section.

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    145mm Knauf Rocksilk Krimpact Flat Roof Slab (16-pack)

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