Roofs in Moroccan architecture boast the exquisite Fez tiles made from rare mountain clay It is a cohesive paneling of curved squares placed under the sun to dry their cogged edges, after being oven baked, they are colorfully painted in green with a mixture composed of copper, lead and sand, to be laid in a coherent space free order but not so monotonous. Because it is made of oven baked mud. these tiles are highly resistant to weather factors.