I've seen wood lobster boats that have been polyester
fiberglassed over 15 years ago and still good.

Rufus wrote:
Allan Vaitses owned a yard and did this type of work (as well as a lot
of other work) for many years. His family is still in the business
AFAIK. He wrote a book about it. Get the book (library) and see what you
think. It's not an easy job, it's not forever.

There are two intrinsic problems as I understand it. 1) The glass will
delaminate from the wood, one way or another. 2) Moisture will get into
the wood from the inside and the wood will stay wet and rot (because the
bottom is sealed).

There are ways to deal with both, but no real solutions. The system
gives an old rotting boat another few years of useful work life, but
it's not a preservation method.

There may be exceptions and success stories, but I have not heard them
documented reliably - I don't know of any boats that have had this done,
say, 10 years ago that I can find out there today. If anybody does, or
knows (first hand) of problem boats, maybe they'd post.

Rufus