NGA FB61-24 PDF

The International Building Code (IBC) includes requirements for storm shelters, typically associated with tornado- and hurricane-prone areas where high winds occur. These shelters can be detached from a building or contained as safe rooms within a building to provide a safe refuge for people. Requirements for storm shelter testing in hurricane-prone areas differ significantly from the requirements for shelters in tornado-prone areas. This document focuses on the use of impact glazing in the latter. The Technical Services Division of the National Glass Association (NGA) has produced this Glass Technical Paper solely for informational purposes. This Paper was developed by dedicated member volunteers and subject matter experts. The original version of this document was published in 2019. This version of the document was updated and published in July 2024.