Poured concrete walls are the ideal material and construction method to solve this problem. Varying in size, these poured concrete-walled rooms can be relatively affordable giving what they safeguard. Although most of Colorado and Wyoming have a very low incidence of damaging tornadoes, they do occur and with violent force. Depending on where you live, damage can range from minor to catastrophic. With a safety shelter in place you can know that your family and valuables are protected.