Source google image: http://www.lisolation.fr/wp-content/uploads/2016/07/L%E2%80%99isolation-phonique-d%E2%80%99un-plancher-en-bois.jpg
Isolation phonique vieux plancher bois
Source google image: http://www.lisolation.fr/wp-content/uploads/2016/07/L%E2%80%99isolation-phonique-d%E2%80%99un-plancher-en-bois.jpg