Source google image: https://www.batirama.com/scaled/983/755/1/2014/10/14/164427/images/article/9672-00-amenagement-terrasses-silvadec.jpg
Terrasse composite evacuation eau
Source google image: https://www.batirama.com/scaled/983/755/1/2014/10/14/164427/images/article/9672-00-amenagement-terrasses-silvadec.jpg