So many times people get hung up on the marketing of something being natural without thinking about what it takes to process and deliver a product. Sure we would all love it if natural would mean no harm being done to the planet in the manufacturing but that is not always the situation. The...
cork is hydrophobic. while a puddle of water might eventually soak in, it repels water and has natural mildew resistence as well.
as for insulation, it has about r1.1 and absorbs some sound.
hello-
i have yet to try cork but i'm also curious about it- i know it is hydrophobic so it should repel water, making it easy to clean. i imagine using a nontoxic sealant would help too.