This Lewis ski boat almost sank to the bottom when a strake opened up. Repaired in high strength epoxy and woven E-glass carefully built up to equivalent strength. With the cosmetics done it was good as new.
This Haines needed a new wet-deck. Replaced using epoxy our standard process is to epoxy coat the underside of the new deck sealing it against water ingress and rotting out. It is an extremely humid and damp environment under the floor and all surfaces need to be carefully sealed.