I'm buying a house with an 8 year old flat rubber roof in Reno, NV that has drainage problems. There is standing water for days after storms with a few water stains on the inside. Old or new I don't know. The rubber has been laid over a hot mop roof but is only attached on the edges so the newer rubber is not connected to the under lying older roof. It springs around when you walk on it. I had a routine physical inspection and the inspector suggested an expert come and take a look. Problem is, there doesn't seem to be any in Reno. This roof is unique to the area. Any ideas regarding the roof and more importantly, any inspectors in the area? Thanks in advance