Every brand has unique requirements for underlayment based on whether the flooring is engineered, solid, or a floating installation. Check your product's official installation guide to see if a specific density, material, or integrated moisture barrier is mandatory. Some manufacturers include the underlayment as part of the product warranty, and substituting a third-party material can potentially void coverage. Always confirm the compatibility of the underlayment with your subfloor type, whether it is concrete or wood, to ensure the long-term integrity of the floor.

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