Kiesel OkaQuiet Uncoupling Sound Deadening Floor/Wall Boards, Substrate for Tile, Laminate, Vinyl Heat Flooring As Insulating Crack Prevention Quiet Walk Underlayment, 60170

This high-performance synthetic resin-bonded and highly compressed uncoupling board is engineered as a premium underlayment solution for a wide range of flooring systems. Manufactured as an approximately 4 mm (5/32 inch) thin, dimensionally stable recycled synthetic fibre board, it is designed to provide effective uncoupling, crack isolation, and sound-deadening performance across interior flooring applications. Its dense, resilient construction makes it ideal for use beneath tile, laminate flooring, luxury vinyl plank, engineered hardwood, and other resilient or textile coverings.

Serving as an insulating intermediate layer, this board is particularly suitable for renovation work and for upgrading poorly insulated substrates in both old and new buildings. It significantly improves walking comfort, reduces impact sound transmission, and enhances thermal insulation while maintaining minimal installation height. The material is water resistant (not waterproof), will not deteriorate, and provides long-term dimensional stability even under varying load conditions.

When installed beneath tile and stone, the board delivers outstanding uncoupling functionality, helping to prevent cracked tile and grout by absorbing substrate movement. For sound-sensitive areas, such as multi-level homes, basements, and upper floors, it functions as a reliable soundproofing underlayment, reducing echo and impact noise. It is suitable for heated floor systems, making it a strong choice for radiant heat applications where additional insulation and decoupling are needed.

This versatile acoustic and insulating underlayment can be used on floors and walls in kitchens, bedrooms, basements, hallways, and other interior areas. It is ideal for tile underlayment, vinyl plank underlayment, and basement soundproofing projects, and may also be used for isolation walls and general sound dampening applications outside wet areas such as showers and tubs.

Before installation, ensure that concrete or wood substrates are structurally sound, clean, dry, and fully stable. Level uneven substrates using a suitable floor leveling compound or cement-based mortar to provide a uniform surface. Following proper installation procedures ensures maximum performance and long-term durability of your flooring system.