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Rockwool  |  SKU: 05E1206100

100mm Rockwool Flexi Slab Insulation 1200mm x 600mm - 4.32m²

£40.58 Ex VAT
£48.70 Inc VAT

Rockwool 100mm Flexi Slab is a versatile and fire resistant thermal and acoustic insulation made from stone mineral wool.

Nationwide Delivery in 3-5 WORKING DAYS

  • £50 ex VAT Delivery
  • FREE DELIVERY OVER £500

Need a next-day or named day delivery? Call Us.


Manufactured from renewable volcanic rock, this 100mm thick ROCKWOOL Flexi Slab acoustic insulation has a total coverage of 4.32m². Fire resistant, innovative and flexi-edged it is designed to reduce your building's carbon footprint, this product provides both thermal insulation and acoustic performance.

Made with patented technology and one flexible edge, this insulation slab is a quick and seamless fit between timber and metal frame systems in walls, floors, roofs and partitions. There is no need to cut the multi-use slab which reduces waste, and minimal maintenance is required.

  • 100mm x 1200mm x 600mm.
  • 4.32m² pack coverage.
  • 0.037 W/mK thermal conductivity.
  • R-Value: 2.63m²K/W.
  • 12 slabs per pack.
  • Easy to cut to any shape with a sharp knife if necessary.
  • Low in maintenance.
  • Tight and secure fit.
  • Versatile across applications, including walls, floors, roofs and partitions.
  • Flexi-edged and fire resistant.
  • A1 classification to BS EN 13501-1.

ROCKWOOL stone wool products achieve noise reduction through: impeding the sound transmission in an element of the structure, and absorbing the sound into the surface due to the structured fibres. They are great absorbers with characteristically high coefficients across a large frequency range.

  • Coverage (m²)
    4.32
  • Thickness
    100mm
  • Length
    1200mm
  • Width
    600mm
  • Material
    Glass Mineral Wool

Do You Ship to My Address?

We deliver to most mainland UK addresses. If you are in one of the areas listed below and are unable to checkout, please give us a call to put together a custom quote.

Northern Ireland (BT), Isle of Wight (PO30-37), Isle of Man (IM), Scottish Highlands and Orkney Isles (PA, ML, EH, KA, G, KY, PH, DD, AB, IV, KW), Outer Hebrides and the Shetland Isles (HS, ZE) will incur additional charges and may also experience delivery delays.

How Much Will My Delivery Cost?

You can work out the cost of delivery on your order before checkout by heading to our Delivery Info page.

How Long Will Delivery Take?

We aim to deliver your items in 3 - 5 Working Days unless otherwise specified (eg - Sheds and Paving Kits). After you have placed your order, we will process your order and book a delivery day - which will then be sent to you via Email.

If have a specific request, please do give our team a call on 01156976800 and we will do our best to help.

What If I Need to Return Something?

If for any reason you wish to return your purchase, we will offer a refund or an exchange as long as this is requested within 14 days of receiving your order.

A manufacturer’s restocking charge may also apply on certain products such as non-stock items, which may be up to 30% of the purchase price, and you will be notified of this amount when you request a refund or exchange.

For full information visit our Returns Policy.