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100mm Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm 4.32m2 Pack
100mm Rockwool Flexi has been designed as a multi-use, dual-purpose acoustic and thermal mineral wool insulation with a unique flexible edge along one side. Ā It is suitable for use all over the home, in pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.
£43.36£52.03 Ex VATInc VAT£10.04£12.05 Per m2 Add to cart -
100mm Rockwool RWA45 Acoustic Insulation Slab 1200 x 600mm 2.88m2 Pack
100mm Rockwool RWA45 has been developed for thermal, acoustic and fire performance in a range of construction types. It is suitable for applications on partition walls, ceilings, floors and roofs.
£23.50£28.20 Ex VATInc VAT£8.16£9.79 Per m2 Add to cart -
140mm Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm 2.88m2 Pack
140mm Rockwool Flexi has been designed as a multi-use, dual-purpose acoustic and thermal mineral wool insulation with a unique flexible edge along one side. Ā It is suitable for use all over the home, in pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.
£42.01£50.41 Ex VATInc VAT£14.59£17.51 Per m2 Add to cart -
50mm Rockwool RWA45 Acoustic Insulation Slab 1200 x 600mm 6.48m2 Pack
50mm Rockwool RWA45 has been developed for thermal, acoustic and fire performance in a range of construction types. It is suitable for applications on partition walls, ceilings, floors and roofs.
£29.96£35.95 Ex VATInc VAT£4.62£5.54 Per m2 Add to cart -
75mm Rockwool RWA45 Acoustic Insulation Slab 1200 x 600mm 4.32m2 Pack
75mm Rockwool RWA45 has been developed for thermal, acoustic and fire performance in a range of construction types. It is suitable for applications on partition walls, ceilings, floors and roofs.
£28.76£34.51 Ex VATInc VAT£6.66£7.99 Per m2 Add to cart -
100mm Knauf Rocksilk RS45 Building Insulation Slab 1200mm x 600mm 3.6m2 Pack
100mm Knauf Insulation Rocksilk RS45 is a Rock Mineral Wool slab, designed for use in multiple thermal and acoustic applications. It is non-combustible with the best possible Euroclass A1 reaction to fire classification.
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140mm Knauf Rocksilk Flexible Insulation Slab 1200mm x 600mm 2.16m2 Pack
140mm Knauf Insulation Rocksilk Flexible Slab is a Rock Mineral Wool slab, designed for use in multiple thermal and acoustic applications as well as the fire protection of a loft conversion floor. It is non-combustible with the best possible Euroclass A1 reaction to fire classification.
POA Get a quote -
180mm Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm 25.92m2 Pallet
180mm Rockwool Flexi has been designed as a multi-use, dual-purpose acoustic and thermal mineral wool insulation with a unique flexible edge along one side. Ā It is suitable for use all over the home, in pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.
POA Get a quote -
25mm Knauf Rocksilk RS45 Building Insulation Slab 1200mm x 600mm 14.4m2 Pack
25mm Knauf Insulation Rocksilk RS45 is a Rock Mineral Wool slab, designed for use in multiple thermal and acoustic applications. It is non-combustible with the best possible Euroclass A1 reaction to fire classification.
POA Get a quote -
25mm Rockwool RWA45 Acoustic Insulation Slab 1200 x 600mm 138.24m2 Pallet
25mm Rockwool RWA45 has been developed for thermal, acoustic and fire performance in a range of construction types. It is suitable for applications on partition walls, ceilings, floors and roofs.
POA Get a quote -
30mm Rockwool RWA45 Acoustic Insulation Slab 1200 x 600mm 138.24m2 Pallet
30mm Rockwool RWA45 has been developed for thermal, acoustic and fire performance in a range of construction types. It is suitable for applications on partition walls, ceilings, floors and roofs.
POA Get a quote -
40mm Rockwool RWA45 Acoustic Insulation Slab 1200 x 600mm 138.24m2 Pallet
40mm Rockwool RWA45 has been developed for thermal, acoustic and fire performance in a range of construction types. It is suitable for applications on partition walls, ceilings, floors and roofs.
POA Get a quote -
50mm Knauf Rocksilk RS45 Building Insulation Slab 1200mm x 600mm 7.2m2 Pack
50mm Knauf Insulation Rocksilk RS45 is a Rock Mineral Wool slab, designed for use in multiple thermal and acoustic applications. It is non-combustible with the best possible Euroclass A1 reaction to fire classification.
POA Get a quote -
50mm Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm 8.64m2 Pack
50mm Rockwool Flexi has been designed as a multi-use, dual-purpose acoustic and thermal mineral wool insulation with a unique flexible edge along one side. Ā It is suitable for use all over the home, in pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.
POA Get a quote -
60mm Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm 103.68m2 Pallet
60mm Rockwool Flexi has been designed as a multi-use, dual-purpose acoustic and thermal mineral wool insulation with a unique flexible edge along one side. Ā It is suitable for use all over the home, in pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.
POA Get a quote -
60mm Rockwool RWA45 Acoustic Insulation Slab 1200 x 600mm 92.16m2 Pallet
60mm Rockwool RWA45 has been developed for thermal, acoustic and fire performance in a range of construction types. It is suitable for applications on partition walls, ceilings, floors and roofs.
POA Get a quote -
70mm Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm 92.16m2 Pallet
70mm Rockwool Flexi has been designed as a multi-use, dual-purpose acoustic and thermal mineral wool insulation with a unique flexible edge along one side. Ā It is suitable for use all over the home, in pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.
POA Get a quote -
75mm Knauf Rocksilk RS45 Building Insulation Slab 1200mm x 600mm 4.32m2 Pack
75mm Knauf Insulation Rocksilk RS45 is a Rock Mineral Wool slab, designed for use in multiple thermal and acoustic applications. It is non-combustible with the best possible Euroclass A1 reaction to fire classification.
POA Get a quote -
90mm Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm 86.40m2 Pallet
90mm Rockwool Flexi has been designed as a multi-use, dual-purpose acoustic and thermal mineral wool insulation with a unique flexible edge along one side. Ā It is suitable for use all over the home, in pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.
POA Get a quote
Acoustic Floor Insulation Thermal
Acoustic floor insulation is among the most effective solutions for countering indoor noise. It is especially useful in multi-storey buildings, but can also help minimise noise through suspended floors in single-storey properties.
What is soundproof flooring insulation?
Soundproof flooring insulation is specially developed to reduce the transmission of sound through floors. It absorbs and dampens sound vibrations, forming a sound-isolating layer within the floor structure. This sound isolation floor keeps unwanted sounds out, ensuring defined indoor spaces remain quiet.
Most soundproof floor insulation is made from dense mineral wool, which provides superior sound absorption.
What is floor sound insulation used for?
You can use floor sound insulation wherever you need sound insulation between floors. It is installed to block or reduce voices, music, the sound of the TV, footsteps, moving furniture, dropped items and other airborne sounds.
Sound insulation for floors is particularly effective in:
- Multi-storey buildings.
- Apartments.
- Office blocks.
- Studios.
- Hotels.
- Student housing.
- Domestic homes.
Types of floor sound insulation
Floor noise insulation comes in various types. The most commonly used materials are:
These are usually mineral wool slabs like Rockwool RWA45 and Flexi or Knauf Rocksilk Flexible Insulation Slab. They are among the best-performing sound insulants, ideal for high-specification acoustic applications. Acoustic slabs often combine their sound insulation capabilities with fire resistance to offer a reliable two-in-one solution.
Acoustic rolls are softer and lighter than acoustic slabs. They are best suited for general sound absorption, although some may be suitable for high acoustic requirements, depending on the floor type and the required acoustic performance rating.
When deciding what type of insulation to use, consider:
- The floor structure.
- The level of sound reduction you require.
- The insulation material.
Benefits of soundproofing floors with insulation
Some key benefits of soundproofing your floors are:
- Reduced noise transmission
- Improved privacy and comfort
- Fire safety
- Supports sustainable construction
- Thermal benefits, since acoustic insulation also delivers thermal performance.
- Helps achieve compliance with UK Building Regulations Part E.
Why choose our acoustic insulation for floors?
- We supply premium soundproof flooring insulation from trusted brands like Knauf, Rockwool and Isover.
- All our products offer superior sound control, easy handling, and compliance with modern standards.
- We offer delivery within 1-3 working days across the UK, unless stated otherwise.
Cut down the noise and raise your comfort levels with acoustic floor insulation from Insulation Wholesale. Shop now to explore our range of floor noise insulation products and enjoy fast UK delivery.
FAQ
How thick should floor sound insulation be?
Choose insulation thickness based on the type of floor you have and the level of noise reduction you want to achieve. Slabs like Rockwool RWA45 achieve excellent sound absorption in domestic settings when used in 50mm - 100mm thicknesses. In commercial spaces, thicker or layered insulation may be required.
Can i soundproof an existing floor without removing it?
Yes, you can add an acoustic underlay or overlay to an existing floor. For more complete sound isolation, install insulation between joists or within the floor build-up. This approach gives better soundproofing results.
Is acoustic insulation also good for thermal performance?
Yes, most floor sound insulation materials also help improve heat retention. So even though sound control is your primary goal, you also get thermal benefits. However, acoustic insulation should not replace dedicated thermal insulation when high U-value performance is required.
