Rockwool Flexi Mineral Wool Acoustic and Thermal Insulation Slab

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product brand
Brand: Rockwool
Country of Manufacture: United Kingdom
In Stock
Product Code: RWFIS
Call us for Enquiry 03303130245

Rockwool Flexi is an ideal insulation solution for any building project and a perfect fit for framed construction. Acoustic insulation slabs are versatile in application and are non-combustible, rot-proof and water-resistant. The dual-purpose acoustic and thermal mineral wool insulation have a unique flexible edge along one side. They do not support or promote the growth of vermin or moulds. 

Rockwool Flexi is manufactured with the patented flexible edge which ensures a perfect fit is maintained between the insulation and the supporting framework. The flexible edge helps to overcome the problems with fresh timber shrinkage as well as the displacement of insulation. They are easy to carry and install. Rockwool Flexi slabs are specially designed to provide perfect friction fitting installation.

Product Specification:





Pack Coverage (m2)

1.2 600 50 12 8.64
1.2 600 60 12 8.64
1.2 600 70 08 5.76
1.2 600 90 06 4.32
1.2 600 100 06 4.32
1.2 600 140 04 2.88

Key Features:

  • A unique, flexible-edged insulation product for a fast and easy, perfect friction fit.
  • Rockwool Flexi has  outstanding thermal, acoustic and fire properties
  • Non combustible- Euroclass A1
  • Water repellant, negligible water vapour resistance
  • Eco-friendly, 97% recyclable
  • Lightweight, easy to install, no maintenance required.
  • Thermal and acoustic insulation slabs are easy to carry and install.
  • They do not need any special tools for installation. 


Rockwool Flexi acoustic and thermal insulation slabs are suitable for use in:

  • External walls
  • Pitched roofs
  • Rafters
  • Suspended floors
  • Internal partitions

Average Customer Rating
Overall 5.0

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