To solve this problem, it is enough to install the windows on your balcony and this will also allow you to attach to the balcony to the entire area of your apartment. After the final decision is made to make a glazing of the balcony, it is worth deciding for what purpose you want to use this area. It will directly depend on this solution, which type of structure will need to be used when installing. If it is decided to introduce the loggia to the total useful area of the apartment, then just the best option would be to install PVC windows.