CosyWool Slab


CosyWool Slab


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Thermafleece CosyWool Slab

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CosyWool Slab – A flexible slab or batt made from British wool – A great choice for insulating walls and roofs.

Thermafleece CosyWool slab is a versatile insulation made from 75% British sheep’s wool. and 25% recycled polyester A great choice for insulating walls and roofs. Research shows that using 75% wool in combination with recycled fibres outperforms alternative products with a higher percentage of wool. Our wool rich blend ensures you get the full benefit of sheep’s wool with enhanced performance, breathability, durability and sustainability.

CosyWool Slabs are flexible but denser than rolls and sized to provide extra tight friction fit in walls and roofs providing excellent thermal and acoustic performance.

Thermal Conductivity: 0.038 Wm-1K-1
Water Absorption (@100% RH): 30% w/w
Specific Heat Capacity: 1800 Jkg-1K-1
Mould Resistance: CUAP 2002-01-25: Pass
Moth/Beetle Proofing: ISO 3998: Pass
Vapour Resistivity: 9 MN·s·g-1m-1
BS 5803-4, Flammability & Smoulder Resistance: Pass
EN11925-2, Reaction to Fire:Pass
Fire Classification: EuroClass E
Recoverability and thickness, EN 823: Pass
Dimensional stability to EN 1604: Pass
Can be used to achieve airborne sound reduction of Rw= 40dB
GWP (A1-A3) inc. biogenic carbon: 0.06kgCO2e for R1
Recycled Content: 20%
Recyclable: Yes

Theremafleece CosyWool Slab Key Facts

Technical Data Sheets





ProductThicknessWidthLengthItems per PackCoverage per pack
CosyWool Slabs50 mm390 mm1.2 m4219.66 m²
CosyWool Slabs50 mm590 mm1.2 m2819.82 m²
CosyWool Slabs75 mm390 mm1.2 m2712.64 m²
CosyWool Slabs75 mm590 mm1.2 m1812.74 m²
CosyWool Slabs100 mm390 mm1.2 m219.83 m²
CosyWool Slabs100 mm590 mm1.2 m149.91 m²
CosyWool Slabs140 mm390 mm1.2 m157.02 m²
CosyWool Slabs140 mm590 mm1.2 m107.08 m²
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