The natural ventilation inside the castle was achieved through five main elements: the large pool in the garden at the front, the fountain located on the ground floor, the two ventilating chimneys and large wet sheets hung beneath the ceilings of the various rooms on the upper floors.

Long before air conditioning, medieval castles were engineered to manage temperature through clever architectural design and natural thermal mass. The most significant cooling feature was the thick stone walls, often 6 to 10 feet deep, which acted as a natural insulator; they absorbed the heat of the sun during the day and slowly released it at night, keeping the interior temperatures remarkably stable. Castles also utilized cross-ventilation, with small, strategically placed windows (loops) that allowed breezes to flow through the massive stone halls. Wealthy nobles frequently retreated to the lower levels or "underground chambers" during the hottest parts of the day, as these areas remained naturally cool. Other cooling methods included the use of water features—such as moats, fountains, and shaded courtyards—which provided "evaporative cooling" as air passed over them. Interior comfort was further managed by hanging damp tapestries or spreading fresh herbs and rushes on the floors to humidify and freshen the air. Finally, castle dwellers adapted their lifestyles, wearing lightweight linen undergarments and "siesta-ing" during the peak afternoon heat, much like people in Mediterranean climates do today.