For this stairwell wall, Nettleton speced a Sto Powerwall Silco system in dark gray. She enjoys the resilient, reflective, and color-fast wall cladding it provides by combining “real concrete stucco” and a silicon-enhanced elastomeric finish. Better still, the manufacturer claims the water-based product emits no gasses. Sto Corp., 800.221.2397;

sarah nettleton architects
sarah nettleton, aia