Floor Insulation Boards
Natural woodfibre floor insulation boards offer a strong yet lightweight solution for flooring, reducing the overall weight of structures. They provide good impact resistance, making them suitable for high-traffic areas while maintaining durability.
Our products
Nordic Fibreboard’s floor insulation boards are rigid wood-fibre softboards for suitable underlay, acoustic and additional insulation layers. Depending on the product and floor system, they can help reduce impact sound, improve thermal comfort and even out minor surface irregularities. They do not replace a load-bearing subfloor, so selection must account for loads, moisture, floor finish and the complete build-up.
Category description
Start with the floor type and required function
The phrase floor insulation boards covers several different jobs. A suspended timber floor may need insulation between or across joists. A floating floor may need an acoustic underlay beneath the finish. A renovation project may need a thin layer to reduce footstep noise and smooth small irregularities. A floor above an unheated space may prioritise thermal resistance and airtight continuity.
Nordic Fibreboard’s relevant wood-fibre range includes ISOmodul, ISOplaat and ISOplaat ECO+ products for suitable floor and underlay applications. The correct choice depends on the exact role of the layer, available height, board thickness, compression behaviour, point loads and compatibility with the finished floor. Use the product page and current technical information rather than assuming that every product shown in the wider category is interchangeable.
Acoustic comfort without the "soundproof" shortcut
The porous structure of wood fibre can absorb and dissipate sound energy. In floors, a resilient fibreboard layer may help reduce impact noise from footsteps and movement, while additional mass, separation and airtightness elsewhere in the assembly influence airborne sound. Results depend on the complete floor-ceiling build-up, including joists or slab, subfloor, resilient layer, finish, ceiling and junction details.
For this reason, describe Nordic Fibreboard’s floor insulation boards as contributing to impact-sound or acoustic comfort where appropriate, not as making a floor soundproof. Projects with a defined dB target should use a tested or calculated assembly and follow the specified installation method.
Comfort starts with the right floor build-up
Wood fibre floor boards can add thermal resistance, improve underfoot comfort and contribute to impact-sound reduction. Thin boards may also even out minor surface irregularities, but they cannot compensate for a wet, unstable or significantly uneven base. The substrate must be dry, sound, level and capable of carrying the intended loads.
Choose the board according to the floor finish and the requirements for thickness, compressibility and thermal resistance. Floating laminate, engineered wood, dry screed and underfloor heating may require different solutions. Heavy point loads, wheeled traffic and fixed cabinetry must also be considered.
Check whether the build-up needs a damp-proof or vapour-control layer, especially over concrete, ground-contact or unheated spaces. Preserve required ventilation below suspended timber floors and follow the current technical and installation guidance for the selected product.
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- Rääma 31, 80044 Pärnu, Estonia
- +372 445 1800
- info@nordicfibreboard.com
Nordic Fibreboard Ltd OÜ
Reg. Code: 12503545
VAT: EE101652014