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Thirty-two pupils from eight different schools met at the Southern Youth Development building in Jubilee Park to learn from experts in natural building about techniques to build eco-friendly structures.
Enviroschools facilitator Jennie Upton said construction waste was a huge issue and the hui was about teaching pupils how to avoid excess waste at building sites.
"We were wanting the students to see that you can build from natural materials and at the end of the life of that building or when you’ve finished building, what’s left over can just go back to the earth."
Ms Upton said as a facilitator her role was to help schools on their sustainability journey and give them the opportunity to see the different methods.
Natural building experts like Cook Brothers Construction sustainability carpenter Daniel Hogan spoke to the pupils about how construction waste could be reused and Clutha District Enviroschools facilitator Scott Martin, who had experience building natural buildings in England and Poland, spoke to the pupils about what they needed to think about when building the structures.