Hi, pretty new on here, not so handy either...last night i was looking my boat over (1999 ugly skiff 15') and when i opened the anchor hatch, i realized that the plywood on the underside of the deck was soaked, and kind of slimy...i touched it, and pieces were literally breaking off. appears that there is so much moisture in there that the wood is rotting. since the front deck is basically sealed off, except for a couple of small hatches (for life preservers, anchor, etc), how do i replace/reinforce that deck? i want to do it before it gets soft and i can no longer stand on it. thanks!