Huge rainstorm dumbed massive amount of rain and clogged drain outside, flooding two carpeted classrooms. We arrived on site to meet with the customer Debi to inspect the water damaged caused from the back entry Staircase. Storm water built up around the drain with debris causing clog that lead to water intruding into the bottom level of the church. They reported water for into the Hallway and 2 classrooms. We found saturated vinyl tile, glued down carpets and drywall materials. We check 7 surrounding areas to be certain of findings. We explained the process, access complications and drying plan. Customer has agreed to move forward with EMS services in the morning. We built drybook, estimate and signed all initial paperwork including standard of compliance forms. We have performed all moisture mapping and labeled all affected areas. Before departure we discussed weekend monitoring, solution contact one of 2 pastors to perform monitoring and pull equipment once areas deemed dry.