WHY WE SAY NO TO BELOW GROUND CONCRETE STORM SHELTERS?
First, this is not a knock on concrete because here at Safehand Shelters we use concrete as our backfiller for our Safehand Shelters Steel Storm Shelters along with our added steel rebar anchors to make your Below Ground Storm Shelter, concrete slab all one piece. So concrete is incredibly strong in most cases. It is used in every aspect our lives, so of course by nature we think its good for everything to include tornado storm shelters. However, using the product as a below ground storm shelter is not what we professionally recommend as industry best practice. Here is our best professional answer we can provide you for you to educate yourself while doing more research so you are able to make the best decision for you and your family. The first thing about below ground concrete storm shelters and why it tends to fails is do to shifting earth soil, changing temperatures, earthquakes and water pressure!
As temperatures fluctuate in the earth, the ground will swell and contract. This can put a substantial amount of pressured on any buried structure. If you didn't know concrete is a rigid product by nature and this is no different from okalahoma concrete storm shelters, so when the earth shifts or when we have earthquakes the results is cracking. Once your below ground concrete storm shelter is cracked, new problems quickly follows and these problems don't go away they continue to exist. One of those problems we often see is that moisture or water will start to seep into the below ground concrete storm shelter from the surrounding earth. Mold is often the next thing that starts to follow. Moisture and mold are two things Oklahoma storm shelter owners should not want as a problem. Our Shelter Maintenance Service (SMS) can be a helpful solution to help prevent your below ground storm shelter from continuing to have problems.