Bonfiglio wall insulation question

A question about insulation materials availability -I’m an American, now living in France, but still doing some work back in the States. Here in France you can buy gypsum wallboard… A question about insulation materials availability -I’m an American, now living in France, but still doing some work back in the States. Here in France you can buy gypsum wallboard…Read MoreGreenBuildingAdvisor