Wood Fiber Insulation Boards – Fibro Natur WR

Fibro Natur WR is a wood fiber board designed as the top layer in roof thermal insulation. Thanks to its hydrophobic impregnation and tongue-and-groove joint system, the board provides excellent sealing, preventing moisture ingress. Its dense structure and precision manufacturing make it a reliable choice for durable, energy-efficient construction.

Key Advantages:

• Outstanding protection against rain, snow, and moisture

• Effective thermal and acoustic insulation

• Quick installation with minimal waste

• Tongue-and-groove profiled edges for perfect sealing

• Eco-friendly product with low formaldehyde emissions (Class E1)

Standard Dimensions:

• Width: 580 mm

• Length: 2500 mm

• Thicknesses: 18 / 22 / 35 / 52 / 60 mm

Technical Characteristics:

• Density: 270 ± 20 kg/m³

• Thermal conductivity λD: 0.0500 W/mK

• Water vapor diffusion resistance: μ = 10 (dry), μ = 5 (wet)

• Compressive strength: > 30 kPa

• Water absorption (24 h): ≤ 10%

• Reaction to fire: Class E

• Sound absorption coefficient: 0.10 – 0.30

Recommended for:

• Top layer in roof thermal insulation

• New builds and renovations where moisture protection is critical

• Timber houses, passive buildings, attics, and pitched roofs