An industry leading lifespan with an industry leading warranty allows your family the peace of mind, knowing they have near absolute tornado protection.
The meticulously designed underground storm shelter offers a number of industry leading features that meet or exceed applicable FEMA & ICC 500 standards and specifications.
Due to the polymer construction and the stress free Rotatinoal Molding process, the Granger ISS Underground Storm Shelter can provide an industry leading lifespan of 1,000+ years. Protect your family for generations to come.
Rotationally molded from Polyethylene, one of the most durable materials on the planet. The underground shelter body features a non VOC foam adding superior strength, rigidity and condensation control.
Exceeds FEMA 320 and FEMA 361 debri impact standards for both underground and above ground tornado shelters. The door of the Granger ISS Underground Shelter is covered by a separate lifetime door warranty.
Exceeds FEMA space requirements for 6 adults when taking shelter underground. The molded in seating provides comfort while the total underground shelter provides near absolute tornado and storm protection for your family.
Comfort, Safety and Security.
1,000+ year lifespan; Double Wall Foam Filled Construction; Rotationally Molded from Polyethylene; Molded in Seating; Limited Lifetime warranty; Lifetime Door Warranty are just a few of the industry leading underground shelter features.
Provide near absolute tornado protection for your family.