Due to the nationwide stock allocation, transportation lead times may be longer than displayed.

70mm Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm 92.16m2 Pallet

Code: IW8581
  • Length: 1.2m
  • Width: 600mm
  • Thickness: 70mm
  • Pack quantity: 8x slabs
  • Pack coverage: 5.76m2
  • Thermal conductivity: 0.038 W/mK
  • Reaction to fire: A1 classification to BS EN 13501-1

14-30 Working Days


The delivery charge on orders below £250 is £72 including VAT. Any orders above £250 are subjected to the standard delivery charge of £36. Delivery lead time is up to 10 working days from the date of the order, depending on product availability. 

We operate heavy goods vehicles, therefore road access and weight limits need to be considered. It is important that the delivery address is accessible to 26-tonne lorries.

Please note you will be contacted by a member of our customer care team if the access to the property is restricted to discuss delivery options i.e. courier services.

See Full Transport Policy

Available on back-order | Lead Time 14-30 Working Days

Delivery Time TBC
Low Wholesale Prices
Open to businesses & public



Rockwool Flexi is a unique, flexible-edged insulation product, specifically developed using patented technology for a fast and easy, perfect friction fit between timber and metal frame systems. Rockwool Flexi provides effective thermal insulation, fire resistance and acoustic performance in all framed areas of the building.

Flexi slabs ensure essential tight fitting for thermal and acoustic integrity between frames in walls, partitions, floors and roofs, without the need for cutting or waste. Made from renewable volcanic rock, they are extremely fire resistant and significantly reduce the carbon footprint of a building.

Rockwool Flexi is a multi-use, dual-purpose thermal and acoustic insulation product with a unique flexible edge along one side. The flexible edge ensures a perfect fit is maintained between the product and its supporting framework for optimum effectiveness. The product consists of a semi-rigid slab with a flexible edge along one side.

Acoustic performance

Rockwool stone wool products work in two distinct ways to reduce noise, either by impeding the transmission of sound through an element of the structure or by absorption of sound at the surface.

The structure of the fibres in Rockwool RW slabs make them ideal for use as a sound absorber, with characteristically high coefficients over a wide frequency range.

Fire resistance

All Rockwool RW slab products, either un-faced or with an aluminium foil or glass fleece on one or both surfaces, achieve an A1 classification in accordance with BS EN 13501-1 and therefore comply with the requirements of non-combustible materials/products, as defined in all UK and Ireland Building Regulations.

Handling & storage

Rockwool RW slabs are light and easy to cut to any shape with a sharp knife.


Once installed the Rockwool RW slabs need no maintenance.


Additional information




Floor, Roof, Walls


Glass Mineral Wool

Product type










Thermal conductivity

0.038 W/mK

Fire Rating

A1 (BS EN 13501-1)


Mineral Wool


Acoustic, Non combustable, Thermal

Product Documents

Data Sheet


Installation Sheet


Safety Data Sheet


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