It did to me. Fiberglass will absorb water and the foam will mildew. If the water stays their the gel coat will eventually fail. Their is a chance the hull /deck joint will continue to fail from vibrations, hull flex... It probably won't fail while you own it. But I couldn't pass along the issue to someone else. It was a relatively easy and inexpensive fix. In addition, I learned how to lay fiberglass and epoxy.