Source google image: https://www.techniciens-accessoire.com/media/catalog/product/cache/3/image/440x/17f82f742ffe127f42dca9de82fb58b1/9/1/919192-1_16.jpg
Isolation thermique r7
Source google image: https://www.techniciens-accessoire.com/media/catalog/product/cache/3/image/440x/17f82f742ffe127f42dca9de82fb58b1/9/1/919192-1_16.jpg