STILE house is geometrically thought of like a rectangular box made by a modular prefabricated section and open space with glass walls. The simple cubic structure is enriched by the arch, a multifunctional element intended to be a support for the solar panels and an object to provide shade for the entire house. Simulation results computed for this house model show how the arch drives down the indoor temperature during a sunny day. The only part of the arch that is not covered by solar panels is the one above the solar chimney.
Natural ventilation for the house is based on the solar chimney that is clearly visible on the top of the house, rising up from the ceiling. During a summer night, the chimney allows the house to cool naturally using the fresh air that can enter from the inlet vents set on the floor in the open space and in the bedroom.
Through the air vents fresh air can enter the house and due to density differences convection will be established. The hottest air goes up, drawn by the chimney that is covered with highly conductive material which allows it to be heated by the sun. The hotter air is exited from the chimney and the colder air is able to remain in the house and refresh the ambiance. The house exposition has been studied to be optimal for south solar panels inclination and for the orientation of the chimney that remains free from every shadow element.
Natural ventilation is supported by mechanical ventilation, designed with HVAC system (Heating, Ventilating and Air Conditioning) to heat and cool the house and HVR (Heat Recovery Ventilation) to guarantee the air shifts needed to provide the best indoor air quality.