Sisalwool Loftroll - Natural Fibre Insulation

Crafted from carefully sourced sisal fibres and cotton, and bound together with a fully recycled co binder, Sisalwool Loftroll is a natural, vegan friendly insulation solution designed for modern, conscious construction. It’s completely free from irritants and harmful chemicals, making it safe and easy to handle - no gloves or special gear needed.

Perfect for both new builds and retrofit loft projects, this roll out insulation is as practical as it is planet friendly.

Every roll is made using 100% recycled materials, including repurposed coffee sacks and denim off cuts, giving it its distinctive blue hue. By using materials that would otherwise go to landfill, Sisalwool Loftroll helps drive the circular economy and supports a cleaner, more sustainable future for the construction industry.

Why chose Sisalwool?

• Vegan
  
• Uses 100% recycled materials
  
• Breathable
  
• Eco-friendly
  
• Thermal efficient
  
• Sound dampening
  
• Sustainable
  
• Anti-irritation
  
• Suitable for retrofit and new builds
  
• No harmful chemicals
  
• User friendly

FAQ

Is Sisalwool fire resistant?

Sisalwool successfully passed the Euro-class E (Reaction to Fire) surface spread of flame test, a classification. making it fully approved for use on non-boundary walls in buildings up to 18 meters high. In this test, a direct flame, like a lighter, is applied to the material. Once the flame was removed, Sisalwool self-extinguished, demonstrating its fire-resistant properties.

But in true Sisalwool fashion, we didn’t stop there. We went one step further. To prove just how robust Sisalwool is, we thought why not do the test again, but this time with a blow torch? The results speak for themselves. 

Watch the video here

How well does Sisalwool handle moisture?

Sisal fibres have a naturally breathable structure that allows vapour to pass through, helping regulate indoor humidity and reduce the risk of condensation or mould. Combined with wool’s ability to absorb and release up to 30% of its weight in moisture without feeling damp, Sisalwool insulation helps maintain healthy indoor environments – ideal for traditional buildings that need vapour openness and long-term stability.