Once cured, the monolithic concrete wall is almost impenetrable, and the foam insulation offers superior thermal protection and sound proofing. While an ICF core can be as narrow as 4 inches (10 cm), forms used specifically for disaster resilience are usually 8-12 inches (20-30 cm) wide.

The endurance and energy-saving benefits of ICFs can apply to any type of structure, from storm shelters and single-family homes, to apartment buildings and schools. ICFs are especially useful for building critical infrastructure, like hospitals and fire stations, to ensure consistent services during an emergency.

EXPLORE ICF TRAINING OPTIONS

Because ICFs offer continuous exterior insulation which virtually eliminate thermal bridging, ICF buildings maintain interior temperatures for much longer than wood-frame or steel-frame ones. In the case of a power outage, ICF structures are less reliant on HVAC systems to keep occupants safe and comfortable.

To test the durability of insulated concrete form construction, ABC Domes and Wind Science & Engineering Research Center Debris Impact Test Facility at Texas Tech University conducted debris impact testing in accordance with ICC 500 and FEMA criteria. A 15 lb. (6.8 kg) piece of wood 2 in. by 4 in. (5 cm x 10 cm) was shot at an ICF wall at 100 mph (161 kph) to simulate airborne debris hitting a structure at 250 mph (402 kph), equivalent to an F4 tornado. The results showed that while the wood penetrated the foam, the concrete core stopped the projectile, keeping the structural elements of the wall intact.

In real world hurricanes and tornadoes, ICFs have proven themselves stronger than wood-frame construction. When Hurricane Michael struck Mexico Beach, Florida in 2018, hundreds of oceanfront properties were demolished or severely damaged. One ICF home, known as the “Sand Palace”, stood alone and unscathed among the wreckage.

Protect Buildings from Natural Disasters with Resilient Design and Insulated Concrete Forms

To combat devastation caused by hurricanes and tornadoes, many homeowners, city officials, and building professionals are turning to resilient design. These preventative practices reinforce the longevity of existing and new buildings, which, in turn, increase personal safety and economic stability during natural disasters.

Insulated concrete form construction meets resilient design standards as well as ICC 500 and FEMA criteria for storm shelters and safe rooms. ICFs are frequently used in residential and commercial buildings as well, for their strength, energy-efficiency, and sound-dampening qualities that outmatch conventional wood-framing.

By proactively building with ICFs and incorporating other resilient design techniques, families, businesses, and entire communities can have peace of mind that they are protected during the most severe weather events.