How to retrofit walls internally with natural insulation

Date: Wednesday 6th July 2022 Timings: 10:00 - 11:30

Join Woodknowledge Wales and the ASBP’s Natural Fibre Insulation Group for an online ‘how-to’ webinar on the use of natural insulation as a solution to the internal insulation of walls.

There are approximately 28.5 million homes in the UK consisting of the oldest housing in Europe. Wales has 5% of the UK housing which in turn is the oldest in the UK, with 32% of buildings constructed before 1919 and therefore predominantly solid wall. Approximately 50% of Wales 1.35 million homes have no wall insulation. This has to change. But insulating solid walls internally in a way that protects the health of the occupants and the building is not straightforward. The purpose of this ‘how-to’ event is to introduce the use of natural insulation as a solution to the internal insulation of walls.

Audience: Housing development and asset management professionals, architects, contractors, students

Format: Online (via Zoom)

Speakers: Nick Heath (NDM Heath Ltd), Martin Twamley (Steico), Chris Brookman (Back to Earth)


  • 10.00 Welcome from Woodknowledge Wales
  • 10.10 What are the challenges of internal wall insulation? – Nick Heath, NDM Heath Ltd
  • 10.30 How does natural insulation help? – Martin Twamley, Steico
  • 10.50 How do you install it? – Chris Brookman, Back to Earth
  • 11.10 Q&A
  • 11.30 Close

This event is part of Trawsnewid Menter Pren | Transforming Timber Enterprise – an event series providing inspiration, knowledge and skills for a zero-carbon built environment.

The transformation to zero carbon creates new and exciting opportunities for both business and skills development. Our aim in this series of expert led events is to inspire organisations in general and young people in particular to better understand and embrace the opportunities presented by the rapid transformation to a zero-carbon built environment. These ‘how-to’ events cover essential aspects of both new build and retrofit, and major on the better understanding of the use of timber products and the forests from which they are produced.


This event is free to attend but you must register via Eventbrite HERE.

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