Are you asking about insurance?
I think you might just be asking a general question, so if not, forgive me. How big are the delamination spots? If they're fairly small & contained, it probably won't be a problem. You will have to get it fixed but it's a great bargaining tool. First you need to find out why it's delaminated. Is there a deck fitting there that was poorly sealed & therefore allowed water to get into the coring? If so, easy peasy! Just remove the fitting, drill out the hole twice the size of the fitting, put tape on the underside & squirt (with a big syringe) liquid epoxy into the hole until it stops "wicking" or soaking it up. Then you'll drill your hole the size of the fitting, goop it up w/sikaflex or 4200 & re-install.If the spots are bigger, you would probably want (well, who WANTS to!) drill a bunch of small holes over the entire area (although you don't have to go all the way thru, just to the coring) & do the above trick with the epoxy. The larger the void, the more epoxy it will take. Don't use filler, you want the epoxy to be liquid so the coring soaks it up.The easiest way is to do it from the topsides but then you have to paint over all these little "holes" which might be unattractive (depending on the boat!). You can also do this from the underside but have lots of rags ready with lots of paint thinner/acetone. I also don't think it would work as well either, gravity being what it is.Hope this was what you were looking for!LaDonna