Source google image: http://www.eti-construction.fr/wp-content/uploads/2011/11/s47-Isoler-les-b%C3%A2tis_corrige.jpg
Isolation naturelle
Source google image: http://www.eti-construction.fr/wp-content/uploads/2011/11/s47-Isoler-les-b%C3%A2tis_corrige.jpg