3mm Premium Acoustic Underlayment — 94% Recycled Rubber, Up to 54 dB Sound Proofing, Slim & Effective Floor Protection

SilentCloud 3 mm Acoustic Underlay
SilentCloud 3 mm is a high-performance, low-profile acoustic underlay manufactured from 94% recycled rubber. Despite its slim build, it delivers impact sound insulation of up to 54 dB in site testing, outperforming many conventional thin mats.

This underlay is engineered for projects where floor height is critical but acoustic performance cannot be compromised. Designed for use beneath ceramic tile, porcelain, stone, vinyl planks/tiles, LVT, and wood flooring, SilentCloud 3 mm provides both sound reduction and substrate protection, making it ideal for renovations, refurbishments, and new builds with restricted build-up heights.

For more options to complement your soundproofing underlay, explore our Soundproofing Underlay collection.

Key Features & Benefits

 Up to 54 dB impact sound reduction (site tested; performance varies by subfloor and installation method)

• Airborne sound insulation up to 50-54 dB, exceeding typical thin underlay performance

• High-density formulation (~950 kg/m³) delivers more mass than standard 3 mm mats

• Weight per m² ~2.9 kg provides superior acoustic control compared with conventional 2.2-2.5 kg/m² products

• Slim 3 mm profile, ideal for refurbishments and projects with limited floor height

• Moisture, mould, and bacteria resistant for long-term durability

• Eco-friendly - made from 94% recycled rubber; contributes to LEED® credits

• Durable and load-resistant, suitable for demanding residential and commercial environments

• Supplied in 10 m rolls for efficient installation

• Fully CE marked and UK Building Regulations Part E compliant

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Applications

• Concrete, timber, and steel subfloors

• Residential apartments, condos, and refurbishments

• Hotels, offices, and mixed-use developments

• Retail and education facilities

• Home gyms, studios, and cinemas where space is limited but acoustic control is required

 

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Installation & ordering

For full-floor installations, order one continuous roll rather than multiple short lengths to minimise seams.

Need help with installation or choosing the right length? Our technical team can advise on sub-floor preparation and acoustic performance. We offer free UK shipping from our local warehouse and trade discounts for larger orders.

 

FAQs

**How much noise does this underlay reduce?**
This 3 mm underlay provides impact sound insulation of up to 54 dB and airborne sound insulation up to 50-54 dB, outperforming many thin mats.

**What flooring can it be used under?**
It is suitable beneath ceramic tile, porcelain, stone, vinyl planks/tiles, LVT and wood flooring.

**Is the underlay eco-friendly?**
Yes. It is manufactured from 94% recycled rubber and is moisture, mould and bacteria-resistant for long-term durability.

**Does it meet building regulations?**
The product is CE marked and compliant with UK Building Regulations Part E for sound insulation.