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Anonymous users2024-01-24Generally, it is 30--50mm, there is no hard rule, the concrete strength is high, and a small value can be taken; The strength of concrete is low, and the large value is taken.
Of course it's important, or it's always pouring back the smell, which will make people annoyed. I know that the kitchen flue industry or Wanju Technology Residential Kitchen and Bathroom Exhaust Pressure Transformation System is more powerful, mainly due to technical improvement, which can ensure that there is no backflow of odor.
Hello, according to the drawings you provided, this is just a partition wall, there is no load-bearing effect, you can rest assured that it can be removed, there will be no steel bars inside, rest assured.
Generally, the waterproof protective layer of home decoration can be 20-30. Engineering construction, 50-60 required.
Hydropower installation only includes the installation and commissioning of hydropower pipelines, and the installation of sanitary ware belongs to the scope of interior decoration projects, not hydropower installation.
The engineering quantity of the toilet ventilation duct and the kitchen flue, that is, the height should be calculated from the first floor to the height of the roof plus 600 mm, and the drawings are marked according to the drawings.