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Anonymous users2024-01-24If you want to calculate it separately, there are generally some on the picture, don't count it as an air duct.
The drawing is written below that the plate thickness is not indicated as 110, if the bathroom and balcony are not indicated in situ, then the bathroom and balcony plate thickness is 110, and the bathroom and balcony are 50 lower than the floor, which means that the bottom of the bathroom and balcony is 50 lower than the bottom of the floor, so that although the plate thickness is 110, the effect of the bathroom and balcony is 50 lower than the floor. But if you take a closer look, the thickness of the bathroom board should be thinner.
It is best for the exhaust fan to have convection air, this kind of thing is worth what you pay for (of course, excluding being cheated) It is best to press two and two exhaust ports for dry and wet separation, and finally all belong to one exhaust fan. If the bathroom.
The toilet exhaust fan does not need a socket when it is installed, and it is controlled by a switch below.
If only the vents are discharged. A 10 cm hole will do. What if you want to install an exhaust fan in the hole? It is necessary to have a 25 cm hole. Or buy the specifications of the exhaust fan and judge.
Install a check valve, which can be empty and rough to avoid chaos and anti-noise.