Naturally breathable
Wool’s natural moisture buffering keeps indoor environments stable and comfortable, ideal for heritage, retrofit, and timber-frame builds.
The World’s Install-Friendliest Insulation
Sisalwool is the natural fibre insulation made for builders who want better: better speed, better comfort, better results. No itchy suits. Just a fast, friction-fit install. No faff. No fuss. No fibreglass.
Why Sisalwool?
Friction-fit install
Sisalwool fits snugly between studs with no fixings or adhesives needed. Cuts clean, stays put, and works with your build, not against it.
Comfortable to handle
No gloves. No goggles. No irritation. Made from sheep’s wool and sisal fibre, it’s insulation you can touch.
Quick to work with
Lighter to carry. Faster to fit. Easier to get the job done without holding up the schedule.
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Why Sisalwool vs Synthetic competitors?
Sisalwool is a blend of Scottish sheep’s wool and sisal fibre, manufactured in the UK and universally easy to use. It’s breathable, thermally effective, and doesn’t shed micro plastics.
Perfect for:
- Internal wall insulation
- Room-in-roof upgrades
- Underfloor installs
- Retrofit and heritage projects
- Garden rooms and modular builds
Unlike PIR or synthetic rolls, Sisalwool delivers insulation and comfort, without the sweat, scratch, or struggle.
Featured Products
Sisalwool is a versatile product, perfect for a wide range of projects. Check out our product guides for more information.
Datasheets available here: Sisalwool 100 | Sisalwool 50 | Sisalwool Loftroll
Interested in Sisalwool?
Reach out to our team today.
For technical support, U-value calculations, CPD training, trade account information and more, we’re here to help.
Call us on 0131 510 9296 or contact us online.
Case Studies
See how builders across the UK are using Sisalwool to speed up installs, improve comfort on site, and deliver better results in every project.
Testing & Certifications
