Our home is about 3 years old, and I have noticed that it is now peppered with mold. Thing is, it is between the stain (Sascho Capture) and the clear top coat Sascho Cascade). How do I get rid of it? Its on 3/4 of the whole house, and we were told no additives were necessary where we live. It rained 9 days out of 10 all last summer when we were supposed to put on a new coat, so the finish was probably failing, but now what?