NanaWall Systems has announced its hurricane system for mid-rise buildings: the NanaWall SL73 Miami Dade/AAMA Hurricane Folding Glass System. The NanaWall SL73 provides a large opening combined with hurricane protection for buildings of up to 8 to 10 stories. The system features clean lines with narrow stiles and rails to maximize glass areas. It has been tested to Miami Dade County Protocols PA201 (large missile impact), PA202 (structural pressure, air, water, forced entry) and PA203 (cyclic pressure), as well as higher structural performance levels and static water testing required for mid-rise buildings. Thermally broken for energy efficiency, the SL73 has been rated, certified and labeled in accordance with NFRC 100 and 200.