Which of the following may be used for concrete insulation?

ICF panels, or Insulated Concrete Forms, are specifically designed for use in concrete construction and offer a combination of insulation and structural support. They are made from materials that provide thermal resistance, helping to maintain temperature levels within a concrete structure. The forms are used to create walls which are then filled with concrete, providing a strong and energy-efficient building envelope. This is particularly valuable in climates where temperature control is essential, as it helps reduce heating and cooling costs.

While other options like wooden planks, fiberglass sheets, and expanded polystyrene may be used for insulation in different contexts, they do not provide the same benefits in terms of structural integrity and efficiency as ICF panels. Wooden planks are not typically used as insulation in concrete settings since they lack the necessary thermal resistance and could lead to moisture issues. Fiberglass sheets can insulate but are generally not used directly with concrete forms. Expanded polystyrene can indeed be an effective insulator, but it’s typically used in different applications and is not specifically designed like ICF for the dual purpose of formwork and insulation within concrete construction.