Rethinking IWI with Natural Fibre Insulation

Date: Thursday 26th January 2023   Time: 12:30-14:00   Location: Online

Join ASBP and members of our Natural Fibre Insulation Group for a deep dive session into thermal upgrades to solid walls using natural fibre insulation internally.

Our experts will explain the impact of insulation depth on energy savings, thermal comfort and humidity balance within the fabric. The event will help in realigning our perception of how we should be internally insulating solid walls and brings us a step closer to truly tackling the enormous retrofit challenge our country faces.


12:30 Welcome from ASBP – Richard Broad, Projects & Communications Manager, ASBP

12:40 Relationship between insulation thickness and energy savings and maximising ROI – Mark Lynn, Managing Director, Eden Renewable Innovations Ltd

13:00 Impact of insulation type and depth on condensation risk – Martin Twamley, Technical Director, STEICO

13:20 Importance and influence of thermal mass on thermal comfort – Chris Brookman, Founder, Back to Earth

13:40 Q&A

14:00 Close

Key details

Date: Thursday 26th January 2023

Time: 12:30-14:00

Location: Online (Zoom)


  • Free for ASBP members
  • Free for architects, designers and specifiers!
  • £20 +VAT for members of partner orgs*
  • £30 +VAT for non-members

*ACAN, AECB, Building Performance Network, BWF, CIBSE, Fit for the Future, FIS, Good Homes Alliance, natureplus, Retrofit Works, Passivhaus Trust, SuperHomes, STBA, The Green Register and Woodknowledge Wales.


Kindly supported by

ASBP Natural Fibre Insulation Group

Ultimate Insulation Supplies

Icons by Guillermo Guso and Zach Bogart.

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