Planting Vegetables Upstairs in Prefabricated Panel Houses

It is not feasible to plant vegetables upstairs in prefabricated panel houses, as it poses various safety hazards and adverse effects.

Firstly, from the perspective of the load-bearing capacity of prefabricated panels, planting vegetables exceeds their load standards. In the load-bearing capacity classification of prefabricated panels for civil buildings, the allowable live load standard value for roofs of the second grade is 2.0KN/m² (i.e., 200kg/m²). When calculating based on the saturated water content bulk density of 18KN/m³ for vegetable-growing soil, with an average thickness of 250mm, it amounts to 4.5KN/m² (450kg/m²), far exceeding the load-bearing capacity of the prefabricated panel roof. According to regulations, planting vegetables on prefabricated panel roofs is not permitted.

Secondly, planting vegetables can pose a hazard to the structural safety of prefabricated panel houses. Building pools for vegetable planting, providing shade, and causing water seepage can result in uneven heating of the rooftop surface. The thin layer of cement applied may bubble and crack, gradually losing its waterproofing effect. At the same time, increasing the load on the rooftop and accumulating water and weight can endanger the safety of the building and damage the top-floor structure.

Furthermore, planting vegetables can damage the insulation layer and drainage system of the house. Watering and fertilizing for vegetable planting can destroy the insulation layer. The branches, vines, leaves of the planted vegetables, as well as the soil washed away by irrigation, can easily cause blockages in the gutter drainage outlets, resulting in water seepage and leakage on the roof and walls, affecting the normal use of the house.

Additionally, planting vegetables can also have adverse effects on the normal lives of residents. The odor produced during fertilization can attract pests such as rats, flies, mosquitoes, and cockroaches, directly affecting the quality of life of residents. Moreover, occupying the rooftop public area can affect residents' drying of bedding and clothing, easily leading to neighborhood disputes. More seriously, planting vegetables can occupy the rooftop public fire emergency evacuation area, directly affecting the safety of residents and posing a threat to fire safety.