Foam or cork underlay is usually the best option for underlay vinyl flooring on floorboards. These materials provide cushioning and help reduce sound transmission, making them ideal for spaces where comfort and noise reduction are priorities. Cork underlay is particularly effective at insulating sound, while foam underlay provides a softer feel underfoot.

On the other hand, when installing vinyl flooring on concrete, it’s crucial to choose an underlay that offers moisture protection. Concrete is prone to dampness, damaging the vinyl if not properly managed. Look for moisture-resistant options, such as rubber or specialised foam underlays, to protect your vinyl flooring from moisture and extend its lifespan.

Common underlay materials for vinyl flooring include foam, cork, and rubber. Foam offers cushioning and soundproofing, cork provides eco-friendly insulation, and rubber enhances durability and moisture protection. The best choice depends on your subfloor and specific needs, such as noise reduction or moisture resistance.

Yes, moisture-resistant underlay is beneficial when installing vinyl flooring on concrete to prevent dampness from seeping through. This underlayment helps protect the flooring from warping, mould, or mildew buildup, ensuring longevity and stability. Choose underlays with built-in vapour barriers for the best protection.