Termofort is a design concept designed for greatly improve the thermal comfort of the inhabitants of Santiago de Cali. Considering that even though Colombia does not have climate stations, is a country with a tropical climate. Cali is a city where the average temperature is 23°C, reaching more than 32°C. A hexagonal system with adaptability to the walls of the house seeks to achieve the desired thermal comfort, using natural and biodegradable materials that, when creating stacked layers, they work as a thermal insulator.