ICF Explained


Insulated Concrete Form (ICF) construction use hollow foam form blocks made with a superior insulating material, Expanded Polystyrene (EPS) which are stacked into the shape of the exterior walls, reinforced with steel rebar and then filled with concrete. The result is an air-tight and highly insulated wall system of unmatched comfort, energy efficiency, noise reduction, pest and fire resistant, and durable to the harshest weather conditions. In seismic zones ICF structures can provide protection during earthquake activity.

ICF construction is commonly used for industrial buildings, hotels, schools, shopping centers, warehouses, hospitals, clean-room manufacturing, government facilities, condominiums and apartment complexes. Other ICF applications are swimming pools, retaining walls and water towers.

How is it Used?

The model to the right depicts how the outside walls look when you build with ICF blocks. The blocks are stacked to the height of your walls, reinforced with steel rebar, filled with concrete and then with stucco, brick, siding or rock is attached to the outside. On the inside, the plumbing and electrical are run through the foam after the walls are poured. Drywall, plaster or stucco is attached to the inside, then finished with trim, flooring and other finishes. The end result is that your home looks like any other but performs 1,000% better.

3 ICF Homes Survive Wild Fires in a San Diego suburb.


Energy Cost Savings

Because ICF blocks are so well insulated, they are often able to effectively eliminate the need for traditional thermal insulation. ICF blocks keep heat in and cold out with extreme efficiency, allowing homeowners to cut back on their energy bills each month and can even give them the opportunity to downsize to smaller HVAC units. The superior insulation benefit is also why it is being used in the construction of in-ground pools.


When comparing ICF blocks to traditional wood frame, ICF blocks are far more durable. They’re more resistant to moisture, mold, rot, insect infestation, and other threats that could compromise the integrity of your building or home. ICF blocks hold up better against harsh weather conditions, such as wildfires, high mph winds and seismic activity. Making the ICF the safer choice with less maintenance.


  • Air-Tight Construction

  • No Off-Gassing for better control of indoor air quality

  • Minimal Construction Waste

  • Durable Building Materials and Performance

  • Recycled Content