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Thermafleece Sheeps Wool CosyWool Loft Insulation 100mm x 400mm - 7.8m2

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£86.77 Incl. VAT
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Thermafleece CosyWool is a versatile insulation rich in British sheep's wool and is the ideal choice if you are looking for all round performance and value for money.

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, durability and sustainability.

Thermafleece CosyWool's convenient compressed form reduces transport impacts by more than 50% compared to other natural insulation and makes it ideal for quick and easy installation. Once unpacked, it regains its original thickness to provide excellent thermal and acoustic performance.

Like all Thermafleece products, it is long-lasting, safe to handle and contributes to a healthier indoor environment by regulating moisture and absorbing harmful airborne substances in the home.

7.8m2 coverage per pack.
3 items per pack.


Length: 6.5m.
Width: 400mm.
Thickness: 100mm.


Roofs: loft & warm roof.
Walls: timber frame & solid (internal).
Floors: all levels above DPC.
Acoustic: walls, floors & roofs.


Thermal Conductivity: 0.039 Wm-1K-1
Density: 18 kgm-3
Water Absorption (@100% RH): 30% w/w
Specific Heat Capacity: 1800 Jkg-1K-1
Ignition Point: >500oC

Can be used to achieve airborne sound reduction of Rw = 40dB.



Length 6500mm Thickness 100mm Width 400mm


Thermal Conductivity 0.039 W/mK Application Floors
Internal Walls
Stud Walls
Material Sheeps Wool Roll Size 0.4 x 6.5m


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Questions & Answers


Can you let me know has this product been given a Euroclass rating (A-F)? Asking because I've had problems with insurance companies in the past regarding fire ratings.


The product in question has a classification of Euroclass - E, here is a link the product on the manufacturers website for more info - https://www.thermafleece.com/product/thermafleece-cosywool-sheep-s-wool-roll


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5 / 5 4 reviews
2nd March
Does what it says
4th September 2020
Excellent. Lovely natural product to use and the bonus of no glass fibres getting into your lungs. Worth the extra cost.
Paul Roach
13th February 2020
The product is excellent
Peter Smith
2nd February 2020
Everything it says in the advertising. Great sustainable product.
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Thermafleece Sheeps Wool CosyWool Loft Insulation 100mm x 400mm - 7.8m2

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