The surface of the roof is made from reed materials such as bamboo, straw or thatch; laid onto wood battens, with a primary structure of wood members. No sheet material is used for the roofing.
Thatch roof, Nepal (M. Schildkamp)
Straw roof, Chile (S. Mihaldzic)
Bamboo roof, Malawi (M. Sassu and I. Ngoma,)