Protection for your family. Sustained winds speeds of up to 70 miles per hour, or higher, are generally associated with tornados, hurricanes, and tropical storms. Tornados are a major cause of damage to buildings and property, with forces strong enough to pick up and carry debris known as wind-borne missiles. These missiles move with enough force to penetrate windows, doors, walls, and other parts of a building. An object such as a 2 x 4 wood stud weighing 15 pounds, when carried by a 250-mph wind, can have a horizontal speed of 100 mph and impact with enough force to penetrate most common building materials used today. Building occupants require more than just a simple dry shelter to survive. Ceco developed StormPro 320 for use in rooms designed as shelters or areas of refuge, to protect occupants from injury caused by missile penetration. Applications: Residential Storm Shelters, Tornado Shelters, Areas of Refuge and Safe Rooms School Shelters where in-swing doors are required School 'Safe' Rooms and Areas of Refuge Shelters or Safe rooms where the number of persons taking refuge will typically be less than 12