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Concrete is poured into the rigid foam shell of the insulated concrete form (ICF) walls; a plastic water barrier has already been installed to protect the below-grade wall surfaces.
Right - A dimpled-plastic geotextile mat covers the below-grade insulated concrete form (ICF) foundation to help keep water out of the foundation and to reduce hydrostatic pressure on the foundation during freeze-thaw cycles in winter.
Seams in the ICF block are sealed so the EPS foam surface can serve as the drainage plane; no house wrap is needed.