I have a 1999 lite hawk 25' camper that we just bought used. At some point it had water damage and now the floor sinks when stepping on. It's pretty much the entire floor. We plan on taking out the old floor. Does anyone know what floor is made of in this model? I'm guessing plywood, insulation and plywood again? Are there floor joists? We can't seem to feel any but those could be rotted too. Are there metal beams the floor sits on? We just want to have some idea of what we will be tearing into I will also take any tips on floor replacement in a camper! Thanks!