Give your laminate or wooden flooring the support it deserves with Whiteriver 3mm Ultra Strong Underlay.
Designed to improve comfort, reduce noise and protect your flooring, this high-strength underlay provides a reliable foundation for a longer-lasting floor.
With 21dB impact sound reduction, it helps minimise footstep noise, creating a quieter and more pleasant living environment.
Its excellent compressive strength supports flooring boards, helping to reduce excessive strain and maintain stability underfoot.
The 3mm thickness also helps compensate for minor imperfections in the subfloor, providing a more even surface for installation.
Offering very good thermal insulation, this underlay adds an extra layer of comfort while helping to reduce heat loss through the floor.
Each roll covers 10m², making it a practical choice for both home renovations and new flooring installations.
Key Features & Specifications
- 3mm thickness: Helps smooth out minor subfloor irregularities.
- 21dB impact sound reduction: Reduces noise from footsteps on laminate and wooden flooring.
- Excellent compressive strength: Supports flooring boards and helps prevent excessive strain.
- Very good thermal insulation: Helps improve comfort underfoot.
- 10m² coverage per roll: Suitable for a range of room sizes.
- Roll dimensions: 1m wide × 10m long × 3mm thick.
- TOG rating: 0.6.
- Thermal resistance: 0.060m²K/W.
- Underfloor heating compatibility: Suitable for use with laminate flooring up to 8mm thick, subject to system compatibility.
- Easy to cut and install: Can be trimmed using a sharp knife or cutter.
- Product code: F1010015.
Frequently Asked Questions
Is Whiteriver 3mm Ultra Strong Underlay suitable for laminate flooring?
Yes. This underlay is designed for use beneath laminate flooring, helping to reduce noise, improve comfort and support flooring boards.
It can also be used with certain other flooring types, subject to the flooring manufacturer's installation requirements.
Does this underlay reduce noise between floors?
Whiteriver 3mm Ultra Strong Underlay provides 21dB impact sound reduction, helping to minimise noise caused by footsteps and movement on wooden or laminate floors.
This makes it a useful choice for bedrooms, living rooms and other areas where reducing floor noise is important.
Can I use this underlay with underfloor heating?
Yes, but only under certain conditions.
The manufacturer specifies compatibility with laminate flooring up to 8mm thick when used with underfloor heating.
Always check the requirements of your flooring and heating system before installation.
How much flooring does one roll cover?
Each roll covers 10m² and measures 1m wide by 10m long.
Measure the total floor area before purchasing and allow extra material for trimming and installation waste.
Can this underlay be installed over concrete floors?
Yes, provided the concrete subfloor is dry, clean, level and structurally sound.
When installing over cement screed, the manufacturer recommends sealing the underlay joints with waterproof tape and using a separate moisture barrier, such as 1000-gauge polythene, for additional moisture protection.
How do I install Whiteriver 3mm Ultra Strong Underlay?
Ensure the subfloor is clean, dry, even and able to withstand pressure.
Roll out the underlay foil side down, parallel to the wall and at right angles to the direction of the flooring boards.
Trim it to size using a sharp knife and tape all joints securely before installing the floor covering.