Homes built with ICF are designed to last for centuries. Concrete’s sheer durability over decades of use goes a long way toward waste reduction. ICF construction conserves forest resources and their energy efficiency reduces fossil fuel consumption. It’s estimated a 3,800 square foot home saves up to 25 large trees when compared to the conventionally built home. Concrete is inert, non-toxic, and is produced from abundant natural and recycled material. An ICF home also has a lower waste factor. In a traditional wood construction house 5% to 10% of materials end up as waste. ICF forms are recyclable. Because these forms can be cut to fit, the cut off portion can often be used elsewhere. An ICF wall system produces little waste to begin with. Total waste from ICF construction is thought to be 1 to 2 percent.