75mm ThermaFleece CosyWool Slab 370mm

75mm ThermaFleece CosyWool Slab 370mm is a flexible, premium-performance insulation solution delivering comprehensive thermal and acoustic benefits at competitive pricing.

Engineered from a wool-rich fibre blend that is thermally bonded, this 75mm slab provides exceptional durability and dimensional stability, resisting compression over its service life. Testing demonstrates this formulation outperforms higher wool-content alternatives, combining the thermal properties of sheep's wool insulation with superior breathability, resilience, and environmental credentials.

Wool represents a natural fibre of exceptional quality. As sheep's fleece develops, it naturally captures carbon dioxide from the air. When incorporated as insulation, it traps airborne contaminants that could affect indoor air quality, fostering a cleaner living space. Specifying 75mm CosyWool Slab 370mm substantially enhances building energy performance and delivers meaningful reductions in 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: 75mm Thermafleece CosyWool Slab
3. Board size: 75mm x 370mm
4. Width: 370mm
5. Length: 1200mm
6. Items per pack: 9
7. Total coverage: 4.0 m² per pack
8. Thermal Conductivity 0.038 Wm-1K-1
9. Thermal Resistance: 1.97 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

Compared to Thermafleece CosyWool Roll, the slab format features increased density, creating a secure friction-fit installation in cavity walls and roof spaces. This greater density also enhances both thermal efficiency and sound dampening characteristics, making it suitable for new construction and renovation applications alike.

All Thermafleece British sheep wool insulation products feature vapour-open construction and complete breathability, enabling moisture management during high-humidity conditions and supporting a balanced, comfortable interior climate.

Key Characteristics

1. Robust and reliable insulation with straightforward cutting and fitting
2. Manageable to work with without protective gloves or specialist safety gear
3. Contributes to a healthier interior by managing moisture and air quality
4. Regulates moisture levels and captures airborne particles, enhancing living conditions
5. Works effectively with breathable membranes for optimised moisture control
6. Fully recyclable and environmentally sound
7. Responsible disposal options available at end of life
8. Lowers carbon emissions throughout its operational period, supporting green building practices
9. Delivers acoustic improvements with airborne noise reduction 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 full range of ThermaFleece Insulation products. We deliver throughout the UK Mainland. For advice on product suitability for your specific project, or to request a bulk quotation, contact us on 02039519012 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Lowest UK Insulation Prices near me.