The window is unstable under pressure.
Even tempered glass, under the strong pressure of the upstairs balcony, the glass on the whole floor-to-ceiling window is very easy to break because of the large lateral pressure.
Leakage problem
Even those who study Japanese decoration can sunbathe lazily by designing a tatami near the French window. Maybe it rained a few times after the renovation, and mushrooms may grow on the wooden floor near the French window. Of course, this is an exaggeration, but it does not rule out the possibility of mushrooms. After all, if there is water seepage, it is easy to cause too much moisture near the balcony, and the renovation of new houses may not be completely "cool" in the first year of the rainy season.
Thermal insulation problem
The design of floor-to-ceiling windows will inevitably lead to greater indoor and outdoor contact. Now the balcony design is to communicate with the main living room, so the insulation of floor-to-ceiling windows is definitely very important. If the heat preservation problem is not handled well, the experience of "warm in winter and cool in summer" will not exist, and even affect the use of indoor air conditioning. In the choice of glass material, it is recommended that floor-to-ceiling windows or owners who are ready to build use insulating glass.