Traditional 3-coat stucco is Portland cement-based plaster over metal lath — hard, breathable, and durable with a 20–40 year service life when cracks are maintained. Excellent WUI performance. Annual crack sealing before Utah winters prevents freeze-thaw infiltration. EIFS (Exterior Insulation and Finish System) adds foam insulation board for improved thermal performance, using a reinforced base coat and synthetic finish coat over the foam. Modern drainage EIFS includes a drainage plane behind the foam to manage moisture — a critical improvement over first-generation EIFS that caused widespread moisture problems. Both perform well in Utah when properly installed; the choice is aesthetic and energy performance driven. RainFire Builders installs both systems and specifies drainage EIFS as the standard for new EIFS applications.