ThermaFleece CosyWool 140mm Flexible Slab

140mm ThermaFleece CosyWool Slab is a flexible, high-performance insulation solution that provides comprehensive thermal and acoustic benefits at competitive pricing.

Constructed from a wool-rich fibre blend that's thermally bonded, this 140mm slab delivers exceptional durability and long-term stability without sagging. Testing demonstrates that this blend outperforms higher wool-content alternatives, delivering the advantages of sheep's wool insulation alongside enhanced breathability, resilience, and environmental credentials.

Wool represents a natural fibre of considerable value. As sheep's fleece develops, it naturally captures carbon dioxide from the air. When installed as insulation, it traps airborne contaminants that could prove detrimental, fostering a cleaner indoor atmosphere. Furthermore, fitting 140mm CosyWool Slab 570mm significantly boosts thermal efficiency and lowers energy consumption in residential and commercial buildings.

Looking for the 370mm split version? Visit Cosywool 370mm Split

Pack Size & Coverage

1. Thickness (mm): 25, 50, 75, 100, 140, 150
2. Model: 140mm Thermafleece CosyWool Slab
3. Board size: 140mm x 570mm
4. Width: 570mm
5. Length: 1200mm
6. Items per pack: 5
7. Total coverage: 3.42m² per pack
8. Thermal Conductivity 0.038 Wm-1K-1
9. Thermal Resistance: 3.68 W/m K
10. Density: 22 kg/m3
11. Vapour Resistivity: 9 MN·s·g-1m-1
12. Highly Breathable Yes
13. Vapour open: Yes
14. Sound Absorption: NRC 1.05 @100 mm
15. Made from British wool Yes
16. Made in the UK Yes
17. Contains recycled materials 20%
18. Recyclable Yes
19. Manufactured to ISO 9001 and 14001: Yes
20. Carbon Footprint PAS 20250 (60 year life): 0.50kg CO2e for R1
21. Dimensional Stability to EN 1604: Pass
22. Flammability & Smoulder Resistance (BS 5803-4): Pass

Versus Thermafleece CosyWool Roll, the slab format features greater density, providing a secure friction fit within wall cavities and roof spaces. This increased density also strengthens thermal and acoustic properties, making it suitable for both new construction and renovation work.

All Thermafleece British sheep wool insulation products are vapour-permeable and fully breathable, permitting moisture transfer during high-humidity conditions and supporting a healthy, comfortable living space.

Key Characteristics

1. Robust and reliable insulation that's straightforward to trim and fit
2. Safe to handle without protective gloves or specialist safety gear
3. Encourages a healthier indoor setting by managing air quality
4. Regulates moisture levels and captures airborne contaminants for improved comfort
5. Works effectively with vapour-permeable membranes for optimised breathability
6. Extensively recyclable and environmentally sustainable
7. Can be safely disposed of once its lifespan concludes
8. Minimises carbon output throughout its operational period, promoting green building practices
9. Enhances acoustic properties with airborne sound reduction up to Rw 40dB

Suitable Applications

• Roofs: Lofts, warm roofs, and pitched roof insulation
• Walls: Timber frame walls and solid masonry walls (internal)
• Floors: Suspended ground floors and intermediate floors

Info

Explore our complete range of ThermaFleece Insulation products. We deliver across the UK Mainland. For advice on product suitability for your specific project, or to request a volume discount quotation, contact us on 02039519012 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Competitive UK Insulation Pricing.