mold growth on carpet backing

https://moldgrowthcarpetbackingblog.valoradigest.com/posts/hidden-dangers-of-mold-growth-on-carpet-backing-and-how-to-address-them

You might notice mold growth on carpet backing when there's been a moisture problem, like a leak or high humidity. At first, it can look like dark spots or a musty smell. Over time, the mold eats into the backing, causing the carpet to pull away from the floor and even rot. It's more than a cosmetic issue, because the spores can affect your breathing, especially if you have allergies. If you spot that kind of discoloration or smell a damp basement odor, it's a sign the backing is breaking down,…