Originally Posted by YRoy
I've also heard of that injecting epoxy into rotten wood method but I really don't like that approach!
I would drill holes strictly to map out the extent of the water saturation and help dry it out.
I'm thinking of using Last-a-foam, it would allow me to start and stop work at almost any stage in the project without leaving a breach in the deck that would absorb even more water.
The little bit of the core I saw on our Grampian 28 seems to be about 1/4 inch thick, but I don't know if it is that thickness everywhere.
I was not sure if that was what you were talking about or not. But on the other hand if it keeps the boat sailing and not being cut up then I see it as not all bad. As long as the person doing it understands that it may not be the best way. That is the problem with a lot of these old boats, cost more to fix than they are worth in many cases.