ACCESSORY
Flooring Underlay
The right underlay is the difference between a floor that lasts 20 years and one that creaks after 18 months. Three core specs cover almost every job we fit.
Rubber underlay for laminate
Dense recycled-rubber base — the highest-rated impact-sound dampener for laminate and click-vinyl over timber subfloors.
5mm acoustic underlay
Required by most leasehold flat agreements (typically ≥18dB impact reduction). Pairs with all our LVT and engineered wood.
UFH-rated foam
Low TOG (≤0.30) so heat reaches the floor surface — never use standard foam underlay over underfloor heating.
Specifications
- Rubber underlay
- 5mm — 24dB impact reduction
- Acoustic underlay
- 5mm — 21dB impact reduction (lease-compliant)
- UFH foam
- 1.5mm — TOG 0.28
- Roll size
- 10m² per roll, all specs
- Price from
- £4.50 / m²
- Lead time
- In stock — next-day delivery
FAQs
- Do I need underlay for click vinyl?
- Yes — even with attached foam. A 1.5mm separating layer protects the click joints and adds acoustic damping. The exception is glue-down LVT, which goes straight to subfloor.
- What's the difference between rubber and foam underlay?
- Rubber is denser, dampens impact sound much better, and lasts decades. Foam is cheaper and lighter — fine for ground-floor solid concrete, wrong for upstairs flats.
- Can I stack two underlays for more acoustic protection?
- No — total underlay thickness above ~6mm causes click-joints to flex and fail. If you need higher sound-reduction, use a single dense-rubber 5mm spec.
- Is special underlay needed for underfloor heating?
- Yes — TOG must stay under 1.0 (we recommend ≤0.5). Standard 3mm foam blocks heat transfer; use our 1.5mm UFH foam instead.
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