View this 2013 video about using seaweed to thatch a modern house in Denmark. On the island of Læsø the tradition of using seaweed goes back hundreds of years. This is an eco friendly roof that should play an important role in future house design. Vernacular construction is important for sustainability.
View more information on the project by visiting the Realdania website.
https://realdania.dk/projekter/tanghuse-paa-laesoe---det-moderne-tanghus