购房选楼层为何买单不买双？听内行人一席话恍然大悟！

Core Viewpoint - The choice of floor in real estate is crucial, with various factors influencing the decision beyond mere superstition regarding odd and even numbers [3][5]. Group 1: Floor Selection Considerations - Top floors are often avoided due to concerns about heat insulation and waterproofing, which can lead to discomfort and difficulties in resale [3]. - Low floors face issues such as insufficient lighting, poor ventilation, and increased pest presence, particularly during humid seasons [3]. - The "equipment floor" has gained attention, as it can generate noise and radiation, affecting the living experience [5]. Group 2: Superstitions and Practicality - The saying "buy odd, not even" is rooted in feng shui beliefs, suggesting that odd-numbered floors are more auspicious, although this lacks scientific backing [5]. - Most buyers prioritize practical factors like lighting, noise, and ventilation over superstitions when selecting a floor [5][8]. Group 3: Lighting and Comfort - Adequate lighting is essential for comfort, with national standards for building design, yet many floors fail to meet these requirements [6]. - Observing lighting conditions during the day, especially in winter, is recommended for potential buyers [6]. - For new properties, design specifications such as width and depth can indicate potential lighting quality, with taller buildings generally requiring higher floors for better light [6].