Protecting the insulation: The vapour barrier
The advantage of doing a project like this, whether it’s Audrey or me, is that we are complete novices at it and we learn something new every step of the way. So, now we know: if you insulate, it’s important to protect the insulation from humidity. This is done with a vapour barrier. It could be paper or plastic on the one side, but the other side will always be aluminum. The vapour barrier serves …