Safe Rooms
ICF C&S Safe Rooms deliver the ultimate in safety for your family and your valuables. ICF walls can be designed to withstand the flying debris of an F-5 tornado and the most severe hurricane winds. ICF walls are also bullet-resistant and able to achieve up to 4-hour fire rating. 
F-0: Light Damage
Chimneys are damaged, tree branches are broken, shallow-rooted trees are toppled.
F-1: Moderate Damage
Roof surfaces are peeled off, windows are broken, some tree trunks are snapped, unanchored manufactured homes are overturned, attached garages may be destroyed.
F-2: Considerable Damage
Roof structures are damaged, manufactured homes are destroyed, debris becomes airborne (missiles are generated), large trees are snapped or uprooted.
F-3: Severe Damage
Roofs and some walls are torn from structures, some small buildings are destroyed, non-reinforced masonry buildings are destroyed, most trees are uprooted.
F-4: Devastating Damage
Well-constructed houses are destroyed, some structures are lifted from foundations and blown some distance, cars are blown some distance, large debris becomes airborne.
F-5: Incredible Damage
Strong frame houses are lifted from foundations, reinforced concrete structures are damaged, automobile-sized debris becomes airborne, trees are completely debarked.
Tornado winds are not consistent. Wind speeds rapidly increase and decrease. An obstruction, such as a house, causes the wind to change direction and increase pressure on parts of the house. This creates stress on the house that can cause building components to fail.
