Generally, it is completely dried after 2 hours.
The specification requirements of the General Principles for the Design of Civil Buildings are as follows:
1. Toilets, washrooms and bathrooms of buildings should not be directly arranged on the upper floors of rooms with strict hygiene requirements or waterproof and moisture-proof requirements, such as restaurants, food processing, food storage, medicine, medical treatment, power distribution and so on; In addition to this house, the bathroom of the house should not be directly arranged in the bedroom, living room, kitchen and dining room on the lower floor.
2. The number of sanitary facilities shall conform to the design code for special buildings, and the proportion of female toilets shall be appropriately increased in the proportion of male and female toilets in public toilets.
3. Sanitary rooms should have natural lighting and natural ventilation without convection to adjacent rooms, and rooms without direct natural ventilation and rooms in cold and cold areas should be provided with natural ventilation ducts; When natural ventilation cannot meet the requirements of ventilation, mechanical ventilation should be adopted.
4. The floor, the groove of the floor, the place where the pipeline passes through the floor and the wall of the floor should be strictly waterproof and leakproof.
5. The surface layer of the floor, wall or dado should be made of materials that are non-absorbent, non-dirt-absorbent, corrosion-resistant and easy to clean.
6. The floor should be skid-proof, the floor elevation should be slightly lower than the walkway elevation, and there should be a floor drain or ditch with slope.
7. Indoor plumbing and bathroom ceiling should be protected from dripping water, and hot water pipes in the bathroom should be protected from scalding.
8. Public men's and women's toilets should have separate front rooms, or be sheltered.
9. Public toilets should be provided with independent cleaning rooms.