Source google image: https://s2.lmcdn.fr/multimedia/211401626956/b07a569c99b4/gg15_254_couches.jpg?$p=mtbhpban
Isolation combles 1 ou 2 couches
Source google image: https://s2.lmcdn.fr/multimedia/211401626956/b07a569c99b4/gg15_254_couches.jpg?$p=mtbhpban