Flooring Underlay - 15m² - CGU

Improve your home flooring with this 5mm thick underlay, designed to provide excellent support and...

Best current price£29.99from Debenhams

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DebenhamsVinyl Flooring Uk Unisex Gold 5Mm Laminate Damp Proof Membrane Underlayment
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OnBuy.comMega Flooring Uk (Covers 15M²(1 X Roll)) 5Mm Gold Foil Laminate Underlay Damp Proof Moisture Barrier
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B&Q - 5mm Gold Laminate Underlay Foil Damp Proof Membrane Moisture Barrier Underlayment Cover Covers 15M²(1 X Roll)
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Wayfair UK5mm Gold Laminate Underlay Foil Damp Proof Membrane Moisture Barrier Underlayment Cover
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Product Information

Full details

The Flooring Underlay CGU is an essential foundation for homeowners and DIYers looking to enhance the comfort and longevity of their laminate, engineered wood, solid wood, or vinyl floors. This 5mm thick underlay delivers superior impact sound reduction and thermal insulation, making rooms feel warmer and quieter; however, it requires a flat, clean subfloor for optimal installation results.

All features

Model Part NumberCGU
BrandVINYL FLOORING UK

Extended Product Information

FAQs

Can I use this underlay with vinyl flooring?

Yes, this underlay is compatible with vinyl flooring, provided the vinyl flooring type allows for a floating installation.

Does this underlay include a damp-proof membrane?

Yes, it features an integrated foil layer that acts as a moisture barrier.

What is the warranty period?

The product is backed by a 25-year manufacturer warranty.

Is this product suitable for concrete subfloors?

Yes, it is ideal for concrete subfloors due to its integrated moisture protection layer.

Can I use this with underfloor heating?

Please check your specific underfloor heating system's thermal resistance requirements, as the 0.7 tog rating may affect heat transfer.

Troubleshooting

Flooring feels 'bouncy' or unstable after installation

The subfloor may be uneven. Ensure the subfloor is leveled or patched before laying the underlay.

Noise still persists despite underlay installation

Check that the floor planks are not touching the walls (expansion gap). Direct contact with walls creates sound bridges.

Pros and Cons

Pros

  • Significantly reduces impact noise by 23dB
  • Built-in moisture protection layer
  • Improves thermal comfort with 0.7 tog rating
  • Versatile use across multiple flooring types
  • 25-year warranty provides long-term assurance

Cons

  • Requires a perfectly level subfloor before installation
  • Not suitable for use with underfloor heating systems if thermal resistance is restricted
  • Rolls can be bulky for transport in small vehicles

Setup, Compatibility & Care

Installation follows a standard floating floor system, meaning the underlay should be laid edge-to-edge across your subfloor.

  1. Ensure the subfloor is clean, dry, and level.
  2. Roll out the underlay with the foil side facing upwards or downwards as per your specific flooring manufacturer's guidelines.
  3. Join the edges using quality moisture-resistant tape to ensure the vapor barrier remains continuous.
  4. Lay your flooring planks directly over the underlay, ensuring no gaps remain at the perimeter.

To maintain the floor's integrity, avoid puncturing the underlay during installation. For cleaning, simply vacuum the surface of your finished floor normally, as the underlay requires no maintenance once the flooring is installed.

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