Hi all, was wondering if anyone could help me figure out what this is , bathroom window sill, above bath, with above bath shower so its always wet, anyway the front if the sill has split and now there seems to be a silvery coloured growth coming out of the wood its about the size and shape of a kids bouncy ball and seems to be textured with little lines, I will try and upload a picture I have taken but it says uploads disabled. Iv never seen anything like this.
Thanks
Dave
Thanks
Dave