Each of our shelters are built to high
standards that are proven to comply with
FEMA 320/361 & ICC 500 standards,
as verified by Texas Tech Wind Science &
Engineering. This means that your storm
shelter is rated to withstand an EF5
tornado with winds of up to 250 mph.
The test projectile of 15 lbs. was propelled at 100 mph, which relates to that projectile being propelled horizontally by a 250 mph ground speed tornado. Our Shelter passed all impacts proving it is capable of resisting the debris impact guidelines of the FEMA 320/361 and ICC-500. All tests conducted by the Texas Tech University Wind Research Center and are compliant with FEMA 320/361 and ICC-500.