ThermoFormed Block Corp.:
Lower Energy Bills (Greater Comfort)

"Energy savings and comfort are built into every ICF system. ICFs start with high R-Value... 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 convective currents within the 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 R-values, low air filtration, and high thermal mass is believed to account for the amazing 25% to 50% energy savings of ICF versus wood or steel-framed homes."
     - Source: Insulating Concrete Form Association

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