hohonline.org -Basement Shelter Basement Shelters It is next to impossible to retrofit a basement shelter into an existing basement and achieve the proper shielding and blast protection needed to meet minimum Swiss standards for 15 psi.
Tornado Basement Shelter . We live in tornado alley. This is our basement shelter we can comfortably take care of 10 people.Please comment.
How to build a storm shelter in an existing basement .... Planning Your Shelter. If your basement is at risk of flooding from storm surge or any other source during a storm, do not proceed with this project.
Home fallout shelter modified ceiling shelter- basement .... H-12-A April, 1980 Protection is provided in a basement corner by bricks or concrete blocks between the overhead joists. A beam and jack column support the extra weight.