Source google image: http://www.evmatch.co/attachment/full/placo-isolant-brico-depot/polystyr%C3%A8ne-graphit%C3%A9-plaque-de-pl%C3%A2tre-et-plaque-de-polystyr%C3%A8ne-l-2-13.jpg
Plaque platre isolant
Source google image: http://www.evmatch.co/attachment/full/placo-isolant-brico-depot/polystyr%C3%A8ne-graphit%C3%A9-plaque-de-pl%C3%A2tre-et-plaque-de-polystyr%C3%A8ne-l-2-13.jpg