What are ICFs (Insulated Concrete Forms) ?
A. ICF’s are basically forms for poured concrete walls, that stay in place as a permanent part of the wall assembly. The forms, made of foam insulation or other insulating material, are either pre-formed interlocking blocks or separate panels connected with plastic ties. The left-in-place forms not only provide a continuous insulation and sound barrier, but also a backing for drywall on the inside, and stucco, lap siding, or brick on the outside. ICF’s are poured concrete wall forms that become a permanent part of the wall assembly. The forms, made of foam insulation or other insulating material, are either pre-formed interlocking blocks or separate panels connected with plastic ties. The forms provide continuous insulation and a sound barrier, and also reinforce backing for drywall on the inside, and stucco, lap siding or brick on the outside.