Thermafleece CosyWool Roll



British sheeps wool insulation for general applications within the building envelope

Suitable for use in a number of applications including roof, wall and floor systems.

Made in Britain from 75% British sheeps wool and 25% recycled polyester.

Higher thermal mass helps buffer heat to reduce summertime overheating.

Allows a healthy moisture balance helping protect building fabric and health.

Can be safely handled without gloves or protective clothing

Thicknesses and Availability:

This Cosywool roll range includes the following readily available product thicknesses: 50mm, 75mm 100mm, 140mm and 150mm.

Product options

Quantity Product ex-VAT inc-VAT  
£16.20 £19.44
£24.95 £29.94
£79.09 £94.91
£81.23 £97.48
£77.30 £92.76
£79.35 £95.22
£85.25 £102.30
£78.91 £94.69
£85.25 £102.30
£80.98 £97.18
£78.32 £93.98
£80.32 £96.38
£78.22 £93.86
£80.36 £96.43

Availability Indicators

Thermafleece CosyWool is sent direct to site from the manufacturer and is subject to the Thermafleece Insulation & Membranes shipping charge.

Reasonable stock levels are held with delivery lead times being around 4-5 working days. Larger orders can take a little longer ... up to 5-10 working days.

Thermafleece reserves the right to change stocked products - while we will do all we can to keep on top of changes, availability and lead times my vary.

  • Generally 1 to 3 working days for delivery
  • Generally 1 to 5 working days for delivery
  • Generally 5 to 10 working days for delivery
  • Special request or made to order item, allow extended lead times. Minimum order levels may apply.
  • Please call to check availability and approximate lead times

Delivery charges will be calculated at check-out. Please visit our Ordering From Us page for further details on minimum order levels and delivery charges. If you have any queries, please do not hesitate to contact me via our Contact Form or on 01903 899 898.

Product Application

General application insulating rolls

Thermafleece natural sheeps wool rolls, CosyWool, is suitable for use in roofs, walls and floors throughout the building.

Product Make-up

Core: Thermafleece CosyWool roll is manufactured by combining British sheeps wool (75%) and recyceled polyester and binders (25%) before being compressed and cut into roll lengths.

Product Properties

Thickness 50mm to 150mm  
Roll Length 4.3m - 13m (dependant on thickness)  
Roll Width 0.37m and 0.57m  

Product Performance

Thermal Conductivity 0.039 W/m·K  
Nominal Density approx. 18 kg/m³  
Water Absorption 30% w/w @100% RH
Mould Resistance Pass CUAP 2002-01-25
Moth/Beetle Proofing Pass ISO 3998
Vapour Resistance > 9 MNs/gm  

Product Variants

Product Thickness Thermal Resistance kg/m²
CosyWool roll 50mm 50mm 1.25 m²K/W 0.89 kg/m²
CosyWool roll 75mm 75mm 1.88 m²K/W 1.33 kg/m²
CosyWool roll 100mm 100mm 2.50 m²K/W 1.79 kg/m²
CosyWool roll 140mm 140mm 3.50 m²K/W 2.50 kg/m²
CosyWool roll 150mm 150mm 3.80 m²K/W 2.70 kg/m²

Standards & Approval

Thermafleece CosyWool roll is manufactured in accordance with quality management system ISO 9001. All products must be installed in accordance with guidance issued by Thermafleece.

Where building regulation approval is required, you should take advice from your local building control authority and the building designer.

  • GWP (A1-A3): 1.63 kgCO2e
  • GWP (A1-A3) inc. biogenic carbon: 0.59 kgCO2e
  • Recycled Content: 20%
  • Recyclable: Yes

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