Casa Mic(r)oLiving: PSA Studio Addresses Tropical Humidity in Housing Design

PSA Studio's Casa Mic(r)oLiving project reframes tropical housing design around a factor often overshadowed by solar radiation and high temperatures: elevated humidity. While heat is typically the primary concern in tropical climates, excessive moisture in the air shapes daily life in ways that temperature alone does not. People generally tolerate high temperatures, but humid surrounding air produces discomfort, a sensation of stifling heat, and skin that feels damp and sticky. Beyond occupant comfort, humidity directly affects the durability of a building. Moist environments accelerate the deterioration of materials and encourage mold growth, which over time reduces the overall quality and useful life of a construction. The project, presented on ArchDaily, argues that addressing humidity is as important as responding to intense solar radiation. PSA Studio's design approach treats moisture control as a central rather than secondary consideration in tropical residential architecture.