Let me introduce my self, i'm anupong from UBM who is organiser for FIA2016 show, I already received the design from exhibitor, so the back wall is higher than us permitted we allowed only 3.5m(H) if you need to build the structure is higher than 3.5m(H) should be setback from neighboring stand 1 m. then i found the design are using driedgrass ? if yes, we concerning when an air condition are opened driedgrass will away from their booth.