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There is no need to negotiate with the neighbors on the personal balcony.
However, a certificate of installation is required at the beginning of the property (just a stamp).
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If the other party is involved, you should communicate with the other party and tell the property.
It should be regarded as an illegal building. Changes to the shape and nature of use of the original building must be approved by the relevant government departments, and qualified special units must be qualified before they can be implemented.
There is nothing illegal or illegal, your own terrace can be installed as a sun room or something, and now there are many companies that seal the balcony and install the sun room, if it is not legal, there will be no such companies.
The foundation for installing the heat exchanger must be satisfied so that the heat exchanger does not sink or the pipes transfer excessive deformation to the heat exchanger pipe. There are generally two types of foundations: >>>More
Not applicable. It is not recommended to install it.
1.In case the balcony leaks... The probability of a balcony leaking is still very high. >>>More