How much can I save on my utility bills with Imagine, Inc. services? Energy savings and comfort are built into every ICF system. ICFs start with a high R-Value. Four inches of polystyrene foam insulation, combine with a six inch concrete wall make up a typical ICF system. This combination is rated above R-17 at 75 degree mean test temperature. Other insulating form configurations and materials also exhibit high R-values.
But that’s not all! Air infiltration in an ICF Home is minimal due to the continuous air barriers provided by the foam insulation and the concrete. Likewise, there are no convection currents within wall cavities. The concrete walls of an ICF home have high thermal mass, which buffers the interior of a home from the extremes of outdoor temperature during every 24-hour cycle. This reduces both peak and total heating and cooling loads. This combination of high R-values, low air infiltration, and high thermal mass is believed to account for the amazing 25% to 50% energy savings of ICF versus wood or steel-framed homes.