Are Galvanized Plumbing lines that bad?

This week Josh encounters a flood home and an improperly installed roof. Turns out the flood home needs tons or repairs so that ended up being re-scheduled. The roof, on the next home was leaky and had damaged the inside of the house. When a roof is incorrectly installed it can be dangerous to inspect because of soft decking, there's always the potential fall hazard. Will Josh survive? Let's go check it out!