Pantiles are a light s shaped clay tile. They were introduced from Holland in the 16th century and were produced in England by the 17th century. They are generally found along the east side of Britain, particularly coastal and estuary areas, including London. They often used for lower pitched and lightly constructed roofs, and on farm and industrial buildings, due to their ability to provide a degree of natural ventilation. They are also found round Bridgwater, in Somerset. Only handmade tiles are suitable for restoration work, and care should be taken to ensure new tiles match existing profiles and colour.