Source google image: https://www.batiproduits.com/img/plaque-de-polycarbonate-pour-isolation-thermique-elevee-akyver-confort-plus-bardage-002460988-product_maxi.jpg
Plaque de isolation
Source google image: https://www.batiproduits.com/img/plaque-de-polycarbonate-pour-isolation-thermique-elevee-akyver-confort-plus-bardage-002460988-product_maxi.jpg