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Environment · Funchal · 2 July 2026

Danish Island Uses Seaweed for Roofing for Over 300 Years

On a Danish island where wood was scarce, seaweed became a roofing material, offering thickness, resistance, and preservation for over three centuries.

Danish Island Uses Seaweed for Roofing for Over 300 Years

On a Danish island that historically faced a scarcity of wood, an ingenious solution was found for roofing: seaweed.

This natural material has proven to be a robust and long-lasting alternative, with seaweed roofs remaining in good condition for over 300 years, demonstrating their longevity and resilience.

The practice highlights adaptation and innovation in response to resource limitations, utilizing the marine environment for construction needs.

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