[rfuerst911sc]

The house was built in 1996 we bought it last year , for all I know the deck boards could be from then . And they do need to be replaced . In regards to the slime yes it is there and could have been growing since 1996 . I just haven't had a chance to break out the pressure washer to clean it up .

If the boards were pulled up and replaced with plywood how would you water proof that surface ? Yes I put a 4 ' level on the deck and it does have a slight pitch away from the house . Maybe a better idea is to just put a storage shed under the two sections . It just seems like a huge waste of space but I don't want to ruin the floor joists .