Next day delivery available! Call 020 3004 5451

Speak to an expert! Call 020 3004 5451

Thermafleece  |  SKU: 48695903060315

Thermafleece CosyWool Slab - 570mm Width - All Thicknesses


£48.75 GBP
VAT and Shipping calculated at checkout.

Delivery & Shipping

Standard: 5-7 Working Day Delivery

Express: Same/Next Day Delivery - subject to availability, please call: 020 3004 5451

For further information, please see our Delivery & Shipping Policy here.

Contact

Have any questions or need assistance with this product?

Phone: 020 3004 5451

Email: sales@nationalinsulationsupplies.com

Contact us.

Returns

This product is a non-returnable product, please see our Return and Refund Policy for further details.

Product Datasheets

Things you should know about this product!

  • This product is sold by the slab
  • This product is available in the following thicknesses: 50mm, 75mm, 100mm, 140mm

Description

Thermafleece CosyWool Slab is a flexible insulation made primarily from British sheep’s wool, offering excellent performance and value. Studies indicate that a 75% wool blend combined with recycled fibres outperforms products with a higher wool content. This wool-rich blend ensures the benefits of sheep’s wool are maximised, enhancing performance, durability, and sustainability.

CosyWool Slabs are denser than rolls, providing a friction fit in walls and roofs, which delivers superior thermal and acoustic insulation. Like all Thermafleece products, these slabs are long-lasting, safe to handle, and help maintain a healthier indoor environment by regulating moisture and absorbing harmful airborne substances.

Specifications

  • Length
    1200mm
  • Width
    370mm or 570mm
  • Material type
    75% British sheep's wool and 25% recycled polyester
  • Thermal conductivity
    0.038 W/mK
  • Fire rating
    Euroclass E
  • Density
    20 kg/m3

Key Features

  • Highly breathable
  • Manufactured to ISO 9001
  • Long lasting: Contains a lofting agent to maintain durability, fibre stability and structural integrity
  • Sustainable: Reduce CO2 emissions and helps to reduce greenhouse gas levels
  • Safe to handle and can be recycled or safely disposed of
  • Moth/Beetle Proofing: ISO 3998: Pass

Where to use

Roofs - Loft & Warm Roof, Walls - Timber Frame & Solid (Internal), Floors - All Levels Above DPC (Damp Proof Course), Acoustic - Walls, Floors and Roofs

Roofs – Loft & Warm Roof

Thermal Insulation:

Energy Efficiency: Thermafleece CosyWool Slab provides excellent thermal insulation, helping to maintain a stable indoor temperature and reducing energy costs for heating and cooling. This is particularly beneficial for both loft and warm roof applications.

Regulation Compliance: Its high thermal performance helps buildings meet energy efficiency regulations and standards.

Moisture Management:

Breathability: The wool fibers are naturally breathable, allowing moisture to pass through and reducing the risk of condensation, which is essential in roof spaces.

Ease of Installation:

Flexible Fit: The slabs are flexible and can be easily fitted between roof rafters or joists, ensuring a snug and secure installation.

Walls – Timber Frame & Solid (Internal)

Thermal Performance:

Heat Retention: It significantly enhances the thermal performance of both timber frame and solid internal walls, helping to retain heat within the building and improving overall energy efficiency.

Acoustic Insulation:

Sound
Dampening
: Thermafleece CosyWool Slab also provides excellent
acoustic insulation, reducing sound transmission through walls and
creating a quieter indoor environment.

Sustainability:

Eco-Friendly:
Made from natural sheep wool, it is a sustainable and environmentally
friendly insulation option, reducing the carbon footprint of the
building.

Floors – All Levels Above DPC (Damp Proof Course)

Thermal Barrier:

Floor Insulation: It provides an effective thermal barrier when installed above the DPC, helping to prevent heat loss through the floors and enhancing the overall energy efficiency of the building.

Comfort:

Warm Floors: Insulating floors with Thermafleece CosyWool Slab ensures that floors remain warmer to the touch, contributing to a more comfortable living environment.

Acoustic – Walls, Floors & Roofs

Noise Reduction:

Acoustic Insulation: Its dense structure and natural wool fibres effectively dampen sound, making it an excellent choice for improving acoustic comfort in walls, floors, and roofs.

Privacy: By reducing sound transmission, it helps maintain privacy between different areas of the building.

Fire Resistance:

Safety: Wool is naturally fire-resistant, which adds an extra layer of safety to the building by slowing the spread of flames in the event of a fire.

Frequently asked questions

  • What is Thermafleece CosyWool Slab? - Thermafleece CosyWool Slab is an eco-friendly, natural insulation product made primarily from British sheep's wool. It is designed for use in various insulation applications, providing thermal and acoustic benefits.
  • What materials are used in Thermafleece CosyWool Slab? - The slabs are made from a blend of 75% British sheep's wool and 25% recycled polyester. This combination provides excellent insulation properties while being environmentally sustainable.
  • How do you install Thermafleece CosyWool Slab? - Installation involves cutting the slabs to fit between studs, joists, or rafters. They should be snugly fitted without compressing the material to maintain their insulating properties. Use a sharp knife or insulation saw for cutting.
  • Where can Thermafleece CosyWool Slab be used? - Thermafleece CosyWool Slab is suitable for use in walls, floors, roofs, and ceilings. It can be used in both residential and commercial buildings for thermal and acoustic insulation.
  • How does Thermafleece CosyWool Slab improve energy efficiency? - The slabs reduce heat loss in winter and heat gain in summer, helping to maintain a comfortable indoor environment and reduce energy consumption for heating and cooling.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Compare with similar products

Compare below to see what sets these products apart:

A table comparing the facets of 5 products
Facet
Thermafleece CosyWool Slab - 370mm Width - All Thicknesses
View details
Thermafleece Cosywool Loft Roll - All Thicknesses
View details
Thermafleece Breather Membrane - All Thicknesses
View details
Thermafleece NatraHemp Slab - All Thicknesses
View details
Thermafleece SupaSoft Loft Roll - All Thicknesses
View details
Price
Price
From £33.59 GBP
From £82.29 GBP
From £47.39 GBP
From £199.84 GBP
From £44.79 GBP
Length
Length
1200mm
Varies depending on thickness
16.7m & 50m
1200mm
Varies depending on thickness
Width
Width
370mm or 570mm
Varies depending on thickness
1.5m
370mm or 570mm
390mm & 590mm
Edge
Edge
n/a
n/a
n/a
n/a
n/a
Fire rating
Fire rating
Euroclass E
Euroclass E
Euroclass E
n/a
Euroclass E
Compressive strength
Compressive strength
n/a
n/a
n/a
n/a
n/a
Thermal conductivity
Thermal conductivity
0.038 W/mK
0.039 W/mK
n/a
0.042 Wm-1K-1
0.040 Wm-1 K-1
Material type
Material type
75% British sheep's wool and 25% recycled polyester
75% British sheep's wool and 25% recycled polyester
Non-woven polypropylene and an inner breathable microporous film
Natural hemp fibres
Recycled polyester fibres
Thermafleece

Thermafleece CosyWool Slab - 570mm Width - All Thicknesses

From £48.75 GBP

Length

1200mm

Width

370mm or 570mm

Edge

N/A

Fire rating

Euroclass E

Compressive strength

N/A

Density

20 kg/m3

Thermal conductivity

0.038 W/mK

Material type

75% British sheep's wool and 25% recycled polyester
View product