The reed goes on, the reed comes off. The reed rots and returns to the earth. The houses we work on outlast us. The thatch we use has never stood still. 'On The Roof' is a thatcher's tale - a journey of discovery, and a reflection on what it means for a person or a building to belong in a place. It tells Tom Allan's story, leaving an office job in the city to find fulfilment among the Devon roofs, as well as the stories of six other people who share his trade.