Z4 Safe Room
To ensure your family’s safety, we went another step further and had a wind engineer create a written wind evaluation. Quality verification involves having the shelters not only debris impact tested, but also a written structural wind engineer evaluation. The structural wind engineer evaluation is not the same as a stamped engineered drawing. Any engineer can stamp a drawing. Only an engineer specializing in wind engineering can provide a written structural third party evaluation.
Each shelter we produce is given an NSSA serial number and seal, and a certificate of installation. Your serial number is registered with the NSSA. When a tornado event occurs, NSSA teams inspect these shelters to verify that they performed as they should. Since our company was founded in 2003, we have never once had a shelter that did not perform as expected during a tornado.
Our safe rooms have been verified to comply with the NSSA/ICC 500 (2014), FEMA P-361 (2015), and IBC (2015) codes.
As an additional safety feature, our doors swing inward to reduce the chance you could be trapped inside the shelter by debris. (You can choose if you want the door to swing in to the right or left.) Even our vent covers, located on the door, are covered so flying debris cannot get inside the shelter.
The Z4’s premium grade steel makes it virtually impenetrable from the outside by debris or intruders. Our internal door hinge design makes the door pry-resistant from an intruder who may try to crowbar their way in. This design also allows the door to safely open inward even if damaged. A former Navy Seal conducted a ballistics test on the safe room and the results concluded the Z4 is resistant to most common ammunition calibers. The tested steel shelter plate is on display in our showroom.
FEMA has two standards for storm shelters: residential and commercial. Because much of our business involves commercial shelters for Fortune 500 companies around the nation, we go ahead and build all our residential shelters to the higher commercial shelter standards. This provides your family with the same level of protection that companies like Google, Microsoft, nuclear power plants, and even the U.S. Government give their employees.