Viking-style seagrass thatch is the latest sustainable building material


A student of the Material Design Lab at the Copenhagen School of Business and Design (KEA), has secured funding to continue her research into the use of eelgrass to produce prefabricated panels for roofs and facades. Kathryn Larsen got the idea while studying ancient building techniques. She found that “Eelgrass is a fantastic material that is naturally fireproof, rot resistant, carbon negative and becomes entirely waterproof after about a year,” said Larsen. “It also insulates comparably with rockwool [a common type of insulation].”


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