Impact Study

STORM SHELTER IMPACT STUDY

Discover how storm shelters protect lives and property during severe weather, backed by real-world data and analysis.

Testing From November 24, 2003
Rigorous Testing, Reliable Safety
Missile Shot I
70 mph

The missile impacted the center of the door producing 1/2 in. of deformation. The area had no other remarkable damage.

Missile Shot II
68 mph

The missile impacted the bottom of the door producing a 1/2 in. of deformation. The door was not opened and there was no other remarkable damage.

Missile Shot III
70 mph

The missile impacted the back left corner of the door producing 1/2 in. of deformation. Upon opening the door it was discovered that the two roller bearings had been shattered b y the missile impact and pieces of the wheels deposited into the safe compartment. It was unknown which missile impact produced the damaged wheels.

The shattered wheels constituted a test failure. It was recommended that the manufacturer replace the roller bearing type wheels with solid steel non-bearing wheels.