Water leaking from a ceiling underneath RTU #17. Did a complete evaluation of rooftop unit. Found several gaps in service panels which would allow rainwater and outside air to enter into unit. There are multiple spots inside unit that are patched up with spray foam and floors are rusted and rotting. Recommend replacing RTU because of rust and water leaks. There is no guarantee that if trying to patch up gaps and leaking areas that there will not be further issues in other places. Will send estimate via email and contact client to find out what the next steps will be.