Source google image: http://www.maison.com/upload/cm/adm/Image/construction/materiaux/bloc_beton_doublage_contre-cloison_porteuse.jpg
Isolation thermique bloc ytong
Source google image: http://www.maison.com/upload/cm/adm/Image/construction/materiaux/bloc_beton_doublage_contre-cloison_porteuse.jpg