Cottosenese is a leader in manufacturing of the Crete Senesi and creates high quality products unique in the world. Cottosenese produces clay roof tiles, drilled bricks and other construction material only with natural elements respecting the ancient tradition of the best italian manifacture.  Cottosenese factory rises up at the foot of a beautiful hill of good clay; the same clay that in the XVIII century has been the raw material for the marvellous artistic ceramics of the Chigi manufacture, famous in the world.