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Natural Insulation Materials

Wood Fibre Insulation UK – Natural & Breathable Insulation Solutions

Wood fibre insulation is a high-performance, natural insulation solution widely used across the UK for energy-efficient, breathable and sustainable construction. Manufactured from renewable wood fibres, it provides excellent thermal insulation, acoustic performance and moisture regulation, making it ideal for modern builds, retrofits and heritage properties.

Unlike synthetic insulation materials, wood fibre insulation is vapour-open, allowing buildings to breathe while helping control condensation and humidity. This supports a healthier indoor environment and protects the building fabric, particularly in timber frame construction and retrofit projects common throughout England.

High Thermal Performance for UK Buildings

Wood fibre insulation delivers reliable thermal efficiency all year round, keeping buildings warm in winter and cooler in summer. Its high thermal mass helps reduce overheating, supporting compliance with UK Building Regulations and low-energy building standards. This makes it a popular choice for walls, roofs and floors in both residential and commercial properties.

Excellent Acoustic Insulation

In addition to thermal benefits, wood fibre insulation provides effective sound absorption, reducing airborne noise and improving acoustic comfort. It is well suited to stud walls, intermediate floors and ceilings, helping create quieter living and working spaces.

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53 products
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150mm ThermaFleece CosyWool Roll 370mm
British Sheep Wool InsulationPack Length: 4.3mPack Width: 370mmPack coverage: 4.77m2Thickness: 150mmQuantity: 1 rollWidth: 370mm
Last known price:£19.90 Inc VAT (£16.58 ex VAT)
140mm ThermaFleece CosyWool Roll 370mm
British Sheep Wool InsulationPack Length: 4.6mPack Width: 370mmPack coverage: 5.11m2Thickness: 140mmQuantity: 1 rollWidth: 370mm
Last known price:£19.90 Inc VAT (£16.58 ex VAT)
100mm ThermaFleece CosyWool Roll 370mm
British Sheep Wool InsulationPack Length: 6.5mPack Width: 370mmPack coverage: 7.22m2Thickness: 100mmQuantity: 1 rollWidth: 370mm
Last known price:£19.90 Inc VAT (£16.58 ex VAT)
75mm ThermaFleece CosyWool Roll 370mm
British Sheep Wool InsulationPack Length: 8.5mPack Width: 370mmPack coverage: 9.44m2Thickness: 75mmQuantity: 1 rollWidth: 370mm
Last known price:£19.90 Inc VAT (£16.58 ex VAT)
50mm ThermaFleece CosyWool Roll 370mm
British Sheep Wool InsulationPack Length: 13mPack Width: 370mmPack coverage: 14.43m2Thickness: 50mmQuantity: 1 rollWidth: 370mm
Last known price:£19.90 Inc VAT (£16.58 ex VAT)
Thermafleece NatraHemp Insulation Slabs 100mm x 370mm
Blend of fibres, rich in British hempPack coverage: 15.98m2Thickness: 70mmQuantity: 36Width: 370mm
Last known price:£268.86 Inc VAT (£224.05 ex VAT)
Thermafleece NatraHemp Insulation Slabs 70mm x 370mm
Blend of fibres, rich in British hempPack coverage: 15.98m2Thickness: 70mmQuantity: 36Width: 370mm
Last known price:£268.86 Inc VAT (£224.05 ex VAT)
Thermafleece NatraHemp Insulation Slabs 100mm x 570mm
Blend of fibres, rich in British hempPack coverage: 10.94m2Thickness: 100mmQuantity: 16Width: 570mm
Last known price:£268.86 Inc VAT (£224.05 ex VAT)
Thermafleece NatraHemp Insulation Slabs 70mm x 570mm
Blend of fibres, rich in British hempPack coverage: 16.42m2Thickness: 70mmQuantity: 24Width: 570mm
Last known price:£268.86 Inc VAT (£224.05 ex VAT)
120mm Steico Special Dry Sheathing And Render Board
Insulating sheathing and render boardPack Length: 1880mmPack Width: 600mmPack coverage: 1.13m2Thickness: 120mmQuantity: 1 Sheet
Last known price:£20.44 Inc VAT (£17.03 ex VAT)
100mm Steico Special Dry Sheathing And Render Board
Insulating sheathing and render boardPack Length: 1880mmPack Width: 600mmPack coverage: 1.13m2Thickness: 100mmQuantity: 1 Sheet
Last known price:£20.44 Inc VAT (£17.03 ex VAT)
80mm Steico Special Dry Sheathing And Render Board
Insulating sheathing and render boardPack Length: 1880mmPack Width: 600mmPack coverage: 1.13m2Thickness: 80mmQuantity: 1 Sheet
Last known price:£20.44 Inc VAT (£17.03 ex VAT)
100mm Steico Internal Wood Fibre Insulation Board
Wood fibre insulation boardPack Length: 1200mmPack Width: 380mmPack coverage: 0.46m2Thickness: 100mmQuantity: 1 Sheet
Last known price:£5.05 Inc VAT (£4.21 ex VAT)
80mm Steico Internal Wood Fibre Insulation Board
Wood fibre insulation boardPack Length: 1200mmPack Width: 380mmPack coverage: 0.46m2Thickness: 80mmQuantity: 1 Sheet
Last known price:£5.05 Inc VAT (£4.21 ex VAT)
60mm Steico Internal Wood Fibre Insulation Board
Wood fibre insulation boardPack Length: 1200mmPack Width: 380mmPack coverage: 0.46m2Thickness: 60mmQuantity: 1 Sheet
Last known price:£5.05 Inc VAT (£4.21 ex VAT)
40mm Steico Internal Wood Fibre Insulation Board
Wood fibre insulation boardPack Length: 1200mmPack Width: 380mmPack coverage: 0.46m2Thickness: 40mmQuantity: 1 Sheet
Last known price:£5.05 Inc VAT (£4.21 ex VAT)
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