Natural Fibre Insulation Week 2025
20-24 October 2025
About Natural Fibre Insulation Week
Join the Alliance for Sustainable Building Products and the ASBP Natural Fibre Insulation Group for the 2ndannual showcase of natural fibre insulation (NFI) products and systems, with a series of in-person events, CPDs, tours and practical hands-on workshops taking place across the UK from 20th – 24th October 2025.
#NFIWeek2025 will once again provide architects, designers, specifiers, contractors and clients with access to some of the leading industry experts from the ASBP Natural Fibre Insulation Group, which includes the major manufacturers and suppliers of natural fibre insulation in the UK.
#NFIWeek2025 is an opportunity to find out more about the multiple benefits of natural fibre insulation, get hands-on with NFI via practical demonstrations, and embark on tours of production facilities and site visits.
About Natural Fibre Insulation
Natural fibre insulation (NFI) products and systems are derived from natural materials such as wood fibre, wool, hemp, straw, cellulose, grass, cotton and flax. NFI has a wide range of applications including for new build and retrofit, and residential and commercial buildings.
Insulation is more than just U-values. It profoundly influences the performance of our buildings and has multiple roles, including acoustic performance, fire protection, improved health & wellbeing and occupant comfort, and lower embodied carbon. Balanced consideration of this multi-functionality often makes natural fibre insulation the most appropriate choice.
Find out more about the multiple benefits of NFI by reading our new introductory guide.
Events calendar
Tuesday 21st October
The Natural Way – Innovation, Insulation & Interaction
Hosted by: Ecological Building Systems
“Join us for an exclusive hands-on experience at our newly launched training facility. Explore best-in-class examples of wall, floor, and roof assemblies for both new builds and retrofits—featuring natural fibre insulation throughout.
Get Practical – Meet our expert technical team, take part in live demonstrations, and roll up your sleeves for interactive practical sessions. Whether you’re a seasoned professional or just curious, you’ll have the chance to try it yourself.
Innovation in Action – Be among the first to tour our EcoCocon straw wall panel demonstration pod—showcasing our latest breakthrough and collaborative partnership in sustainable construction.”
Date: Tuesday 21st October
Time: 10:00-14:00 (Drop-in any time)
Location: Cardewlees, Carlisle, Cumbria, CA5 6LF
Type of event: Live demonstrations, talks and tour
Cost: Free of charge
Further information: A certificate of attendance based on 3 hours of training can be provided. Please note there are stairs to access one of our showrooms.
How to register
Free registration via the EBS website. Click ‘Add to basket’ and then complete the checkout process.
21st & 22nd October
Panelised Building Systems & Wood Fibre Insulation
Hosted by: STEICO and Oakwrights
“Oakwrights, in collaboration with STEICO, is pleased to host a two-day open event focused on innovative panelised construction systems and sustainable wood fibre insulation solutions. The event is designed for architects, specifiers, and construction professionals, offering insight into the WrightWall® and WrightRoof® systems, STEICO’s bio-based materials, and the benefits of low-carbon construction.”
Key details
Date: Tuesday 21st and Wednesday 22nd October
Time: 10:00-12:00; 13:00-15:00 (both days)
Location: Oakwrights, The Lakes, Swainshill, Hereford HR4 7PU (use postcode HR4 7PS)
Type of event: Tour and demonstration
Cost: Free of charge
How to register
Register via the STEICO Eventbrite page.
Thursday 23rd October
Warmcel - All About Recycled Newspaper Insulation
Hosted by: PYC
“Join PYC’s Jasper Meade and Rich Hibbert at their Passivhaus offices as they present on Warmcel cellulose insulation, including physical properties, manufacturing process, performance and resilience testing, along with technical detailing within different construction types.. Following this there will be a site visit, to see a recently completed house insulated with Warmcel.”
Date: Thursday 23rd October
Time: 14:00-16:00
Location: The House Building Factory, Buttington Cross Enterprise Park, Welshpool, Powys, SY21 8SL
Type of event: Presentation and site visit
Cost: Free of charge
How to register
Send an email with your key info (name, contact details etc) to rachael@pycgroup.co.uk to register your place.
Friday 24th October
Sisalwool Open Workshop
Hosted by: Sisalwool
“Visit our workshop and get to know our natural fibre insulation with a presentation from Sisalwool’s John Ferguson and Gavin Moore, plus live demos alongside a barbecue lunch. Meet the team and take home Sisalwool samples and merch.”
Date: Friday 24th October
Time: 12:00-14:00
Location: Unit B4, Midlothian Innovation Centre, Roslin, EH25 9RE
Type of event: Workshop with demonstrations and presentation
Cost: Free of charge
How to register
Register via the Sisalwool Eventbrite page.
Natural Fibre Insulation Week 2025 is supported and hosted by the ASBP Natural Fibre Insulation Group
Find out more about the group at https://asbp.org.uk/group/natural-fibre-insulation.