Laminate is often sold as 'floating', but that does not mean that an underlay is unnecessary. An underlay prevents contact noise, provides better insulation and protects against moisture. In apartments or rooms with underfloor heating, the right underlay is even essential for comfort and achieving the required noise standards. And last but not least, a good underlay ensures stability. With laminate, the compressive strength is of great importance because the click connection, which locks the planks together, must remain in place under constant load. If the laminate does not have sufficient compressive strength, the click connection may loosen over time or become damaged due to the pressure of furniture or intensive use, for example.