Cogon grass, Nipa palm leaves and coconut fronds are used as roof thatching. Reed is used in many areas for thatching roofs. People use the flowering stems and leaves for thatching, basketry and making brooms. From the mountains, materials such as wood are provided for thatching roofs and twining rope. Palm leaves were used effectively for thatching the roofs and for making partition walls. Local cottage industries included blacksmiths, butchers, thatching, basket weaving, skinning and tanning. The leaves are used for thatching and making straw hats. Several types of nails were made, including lath nails, slate nails, thatching nails and sparrowbills. Building methods include earth walling and thatching. The plant is used in thatching huts. Minor was made of bamboo for the frame and nipa leaves as thatching. Residents use the reeds for thatching and other domestic purposes. "Phragmites australis", the common reed, is used in many areas for thatching roofs. It is used for thatching the roofs of traditional homes throughout south-east Asia. Norfolk reed from the broads has been a traditional material for thatching houses.