Why are Chinese ancient buildings suitable for living?

    In ancient Chinese architecture, eaves are a major feature. The overlapping eaves of the corridor create a magnificent and dancing artistic beauty, dazzling. Especially at the corner of the castle roof, the four corners stretch out, like a phoenix spreading its wings to fly. It is both elegant and gentle, exuding a strong classical style in mid air.

    Eaves not only make the building aesthetically pleasing and generous, but also take good care of its function: in summer, it is beneficial to prevent the sun from shining into the room at noon; In winter, the noon sun shines into the depths of engineering buildings. The vast majority of China is located in the northern temperate zone, and there will be a certain change in the perspective of direct sunlight throughout the four seasons.

    By pulling out the eaves to a certain size, the actual effect of direct sunlight can be adjusted: in summer mornings when the temperature is low, the sun can be sprayed into the interior of the engineering building. At noon, the sun is basically located above, only shining on both sides of the eaves column. The heat generated is also protected outside the engineering building, and the room is kept cool.

                                              
    If it's winter, with the sun rising, the interior of the engineering building slowly receives sunlight. At noon, when the sunlight hits the interior walls of the room, it promotes warmth and comfort.

    Ancient Chinese architecture has a unique beam and steel frame structure. The common lifting beam style in advanced engineering buildings is based on erecting beams on upright poles and lifting them layer by layer, resulting in a sloping roof. The double-layer wooden prefabricated components have much better fire resistance compared to the concrete structure walls of modernist buildings.

                                              
    The sloping roof method led to the emergence of an elevated layer at the top of ancient buildings. The heat generated by sunlight must undergo two rounds of buffering and cooling: first, it enters the roof based on the mud backing layer of the roof, and then passes through the connection of the elevated layer above the suspended ceiling before it can be transmitted downwards again to the road surface.
    In winter, the presence of elevated floors also prevents the outdoor cold from immediately spreading to the room, ensuring the warmth in winter and coolness in summer for ancient buildings.