A dense sheep wool based insulation with greater insulation performance to meet higher energy efficiency requirements. Thermafleece Ultrawool is supplied as easy to handle 1200mm long slabs that fit securely to enable ‘best in class’ thermal and acoustic insulation performance. Contains 75% British wool, 15% recycled polyester lofting agent and 10% polyester binder with a high recycled content.
Related: The Benefits of Natural Insulation
Like all Thermafleece wool products, Thermafleece Ultrawool is long-lasting, safe to handle and can contribute to a healthier indoor environment by acting as a moisture buffer and absorbing indoor pollutants such as formaldehyde in the building fabric.
- Sustainable
- British Wool
- Made in the UK
- Width (mm): 390 & 590
- Thickness (mm): 50, 70 & 90 mm
- Thermal conductivity: 0.035 W/mK
Please contact us for a delivered price. Let us know how many packs you need, or the area you're insulating, and where you'd like them delivered. We're happy to quote.
Thermafleece Ultrawool High Density Wool Insulation Documentation:
Read: Insulating a Suspended Timber Floor
Installation Guides (opens in new tab)
Further Information
Environmental Product Declaration (EPD) for Ultrawool (pdf)
EPD's are a way of determining and publishing the environmental impact of products and cover a range of aspects including embodied carbon, measured as the Global Warming Potential (GWP) of the product. The data on the Thermafleece Cosywool, Ultrawool and SupaSoft insulation EPD's is published for the thickness required to achieve an R value of 1 enabling easy comparison with other products.
