Source google image: https://www.batirama.com/scaled/983/755/1/2013/05/30/204653/images/batirama/stories/isolantminceetlainedeverre10.jpg
R isolant mince 21 couches
Source google image: https://www.batirama.com/scaled/983/755/1/2013/05/30/204653/images/batirama/stories/isolantminceetlainedeverre10.jpg