Source google image: https://www.brestisolation.fr/wp-content/uploads/2017/10/2010-09-28-cuisine-pose-du-mastic-Valentin-au-plafond-1.jpg
Isolation entre poutre plafond
Source google image: https://www.brestisolation.fr/wp-content/uploads/2017/10/2010-09-28-cuisine-pose-du-mastic-Valentin-au-plafond-1.jpg