ThermaFleece CosyWool 50mm Flexible Slab 370mm

50mm ThermaFleece CosyWool Slab 370mm is a flexible, high-performance insulation solution that provides comprehensive thermal and acoustic benefits at competitive pricing.

Manufactured from a wool-rich fibre blend that is thermally bonded, this 50mm CosyWool Slab offers exceptional durability and long-term stability, resisting slumping throughout its service life. Testing demonstrates that this blend delivers superior performance compared to higher wool-content alternatives, combining the thermal advantages of 50mm sheep's wool insulation with improved breathability, resilience, and environmental credentials.

Wool represents an exceptional natural material. As sheep's fleece develops, it naturally captures carbon dioxide from the air. When incorporated as insulation, it traps airborne contaminants that could affect health, fostering a cleaner indoor atmosphere. Fitting 50mm CosyWool Slab 370mm substantially enhances building energy efficiency and lowers heating expenditure.

Looking for the 570mm split version? Check out Cosywool 570mm Split

Pack Size & Coverage

1. Thickness (mm): 25, 50, 75, 100, 140, 150
2. Model: 50mm Thermafleece CosyWool Slab
3. Board size: 50mm x 370mm
4. Width: 370mm
5. Length: 1200mm
6. Items per pack: 12
7. Total coverage: 5.33m² per pack
8. Thermal Conductivity 0.038 Wm-1K-1
9. Thermal Resistance: 1.32 W/m K
10. Density: 18 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

In comparison to Thermafleece CosyWool Roll, the slab format features greater density, delivering a secure friction-fit installation in walls and roof cavities. This increased density also strengthens thermal and acoustic performance, making it suitable for both new construction and renovation applications.

All Thermafleece British sheep wool insulation products are vapour-open and completely breathable, enabling moisture management during high-humidity conditions and supporting a healthy, pleasant indoor setting.

Key Characteristics

1. Robust and reliable insulation that cuts easily and installs without difficulty
2. Handling is safe without gloves or specialised protective gear
3. Fosters a healthier indoor space by managing air quality regulation
4. Regulates moisture and captures airborne pollutants, boosting indoor wellbeing
5. Works effectively with vapour-permeable underlays for improved air circulation
6. Extensively recyclable and ecologically sustainable
7. Disposes safely when reaching end-of-life
8. Lowers CO₂ emissions throughout its operational period, advancing green building practices
9. Enhances acoustic control with airborne noise 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 ThermaFleece Insulation range. We deliver across the UK Mainland. To discuss product suitability for your application, request a bulk discount quote, call 02039519012 / 02038839057, email sales@insulationbee.co.uk or use Live Chat for the best UK insulation prices.