Rockwool Flexi Acoustic Insulation Slabs | 100mm


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Rockwool Cavity Insulation Slabs

Rockwool Flexi Acoustic Insulation Slabs | 100mm


Out of stock


Rockwool Flexi Acoustic Insulation Slabs | 100mm

Acoustic Insulation, as the name suggests, is used to balance the acoustics of a room and is designed to deflect, absorb and dissipate noise to a manageable level. The Rockwool Flexi Acoustic Insulation comes in slab format, making it strong, rigid and resilient. This particular type of Rockwool insulation has a unique flexible edge along one side, this provides the perfect fit for your project without cutting or waste while keeping the rigidity of the slab format. These insulation slabs are perfect to absorb sound in multiple settings, including homes, offices, music studios and attics.

This product meets all the health and safety requirements for installation, including Euroclass A1 to BS EN 13501-1 Fire Classification.

The Rockwool Flexi Acoustic Insulation Slabs come in a variety of sizes and thicknesses to fit any requirements:


Size options:

50mm 8.64 m2 per pack
70mm 5.76 m2 per pack
90mm 8.64 m2 per pack
100mm 4.32 m2 per pack

Additional information

Weight 15000 g


The best type of insulation foam board works well to insulate anything from walls, ceilings and floors.

R-30 is recommended for attics, floors, ceilings and unconditioned crawl spaces.

R-13 for the walls and R-19 for the ceilings.

Yes, rockwool insulation insulates against sound, thermal and fire, therefore if you get acoustic insulation, you will still get the benefits of thermal insulation.

The difference between acoustic and thermal insulation is that thermal helps to keep your building warm. It also stops heat transfer whereas acoustic helps stop sound vibrations.

You can install acoustic insulation in the wall cavity, in floors and in roofs.

Using acoustic insulation can effectively absorb sound.

Acoustic insulation is made of mineral wool insulation with non-directional fibre orientation.

Acoustic insulation adds mass to help stop sound vibration through a structure.

Using an acoustic insulator can be effective in absorbing sound vibration when used with other soundproofing methods.