From a scientific point of view, planting trees on the roof may have an impact on indoor air quality, because the air index and humidity index under the tree are quite different from the outdoor environment, and bacteria and viruses are easy to breed under the tree, which is harmful to human health. In addition, in thunderstorm weather, trees are easy to guide thunder, which is dangerous to people living under trees. So from a scientific point of view, planting trees on the roof is not a good choice.
From the perspective of feng shui, the growth of trees on the roof may have an impact on the feng shui of homes and communities. Canopy will affect indoor light and air circulation, thus affecting the mood and health of residents. At the same time, the growth of trees may affect the stability and drainage of the roof, leading to problems such as roof leakage and collapse. In addition, too large a canopy may affect the beauty of the whole building and community, giving people an uncomfortable feeling. Therefore, from the perspective of geomantic omen, planting trees on the roof is not a good choice.
To sum up, planting trees on the roof may bring some benefits, but it may also bring some adverse effects. So if you want to plant trees on the roof, you need to comprehensively consider various factors, weigh the pros and cons, and make a wise decision.