1. Difference in thickness position
The floor slab is indoor, and the thickness of the floor is mostly 80-160mm. The biggest function of the floor slab is to bear the weight. There are differences in the plate thickness and the type and type of the reinforced steel bar, and the density. The roof slab is outdoor. The thickness of the roof slab is generally 60-80mm, which has great requirements for waterproof and thermal insulation.
2. The difference in function
The main function of roof panel is to form the enclosure space of the building with the wall and ground, and play the role of heat insulation, weatherproof, sunproof and waterproof. The main function of the floor slab is to divide the space in the building vertically.
3. The difference in structural load
From the structural load, the roof slab mainly bears the load of the board's own weight, suspended ceiling, leveling layer, insulation layer, waterproof layer, snow, dust, maintenance and other loads, and the load composition is mainly based on permanent loads. Floor slabs mainly bear the load of self-weight, plastering, furniture for residents, etc. In addition to the self-weight of the slabs, the civil buildings are mainly live loads. Therefore, the proportion of live load in the floor is larger.
