i am going to wire an assembly area at a church with lights and 120 volt receptacles. It has a complete roof over a concrete floor. All four sides are totally open. It is classified as a damp area. Can I use type UF wire above 8 feet and pvc or emt below 8’? I think I can use indoor rated junction boxes throughout. My concern is that it is an assembly area and could hold more than 100 people and may require emt or mc cable. Any feedback is welcome.