Most acrylic finishing systems are comprised of a reinforced base coat, optional primer and a 100% acrylic polymer finish. Finishes are available in a limitless color selection and offer performance enhancement options. Exterior acrylic systems are perfectly suited to ICFs, as the preparation for applying an acrylic system to the ICF typically requires only rasping the foam before application. If exterior webs/ties are present, an additional layer of 1 thick EPS must be adhered over the ICF prior to application of the acrylic finishing system. Portland cement stucco is also a very durable and can create an endless variety of colors and textures for an exterior of a house or building. When stucco is applied to metal lath, three coats of plaster form a 7/8-inch total thickness. A vapor-permeable, water-resistant building paper separates the plaster and lath from the ICF. It’s a proven system that works in all climates.