In the everchanging world every now and then we get a new driver, that dictates most of our choices. In the current built environment and building industry, carbon dioxide feels like such a driver. We don't like it, we want to get rid of it... One way is to sequester or store large amounts of CO2 in our buildings. Ways to do that - more obvious is mass timber, but thats not the only thing. Let's talk bio-based insulation.

In this episode I've invited Patrick Sudhoff, now from DBI but the research was carried at University of Applied Sciences Magdeburg-Stendal. Patrick carried his PhD on the smouldering fires in bio-based insulation, and thus has built a good knowledge base around the topic. We discuss all the types of different bio-based insulations, what they are made of and where they are used. First we cover the drivers and need for the new material, as well as the benefits it brings to the table. We discuss the challanges with the onset of smouldering, transition to flaming and spread of fire through the structure.

List of projects that were related to the subject and discussed in the podcast:

• „More than just insulation additional benefits of insulation materials made from renewable raw materials “, 6 different research areas: fire protection, soundproofing, thermal insulation, sustainability analysis, moisture protection, emissions, 2016-2020, 12 institutes plus external partners
• “PyroProBiD – Development of a smoldering prognosis model for bio-based insulation materials”, 2020-2023 (my PhD project), Otto-von-Guericke University Magdeburg & University of Applied Sciences Magdeburg Stendal
• “HoBraTec – Optimization of firefighting procedures for multistorey timber buildings", 2022-2024, Fire Brigade Hamburg & University of Applied Sciences Magdeburg-Stendal & Institute of Fire and Disaster Protection Heyrothsberge

Some literature I got from Patrick:

• This poster gives you a brief summary of the latest challenges and solutions regarding the fire behavior of bio-based insulation - http://dx.doi.org/10.13140/RG.2.2.18735.14241

Further reading:

• Sudhoff, P. (2024): “Modeling the Fire Behavior of Bio-Based Insulation Materials”, Proceedings of the 4th International Symposium on Fire Safety of Facades 2024: 10-12 June 2024. Lund, Sweden, ISBN 978-91-89971-04-2
• Steen-Hansen, A., Fjellgaard M., Ehrlenspiel, R. (2023): “Smouldering fire test methods - Documenting the potential for smouldering fires in thermal insulation”, Report number: FRIC Report D3.1-2023.06, November 2023, http://dx.doi.org/10.13140/RG.2.2.21978.72640
• Steen-Hansen, A., Mikalsen, R.F. & Jensen, U.E (2018) Smouldering Combustion in Loose-Fill Wood Fibre Thermal Insulation: An Experimental Study. Fire Technol 54, 1585–1608. https://doi.org/10.1007/s10694-018-0757-4

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