any tips for improving the lifespan of a fiberglass-over-Xps insulation foam boat?

before anyone gets mad at me, yes, i know XPS foam is not very good for boatbuilding. it was my dad

Making Stringers & Knees from XPS foam [part 2] - Dream Boat Build

Wrapped foam plank

insulation Archives - Hansen Buildings

XPS/Luan Sandwich for Deck

Improvised Boat Project, Page 2

fiberglass correct lamination process, opinion

BougeRV Fiberglass 100W Solar Panel (New Arrival) | ISE214

Fiberglass over EPDM Rubberized pipe insulation?

Rigid Foam vs. Fiberglass Insulation: What's the Difference?

Fiberglass on XPS Foam - Polycrylic or Epoxy? (for RC planes