S.L.P. snc: installation of a rolling shutter with central lever projection frame

S.L.P. snc is a company specialized in the production of projection frames for rolling shutters since 1982.
Aluminum projection frame is easy to install and, if combined with your rolling shutter, it guarantees natural ventilation, sun protection and the respect of our own privacy even when the rolling shutter is opened outwards.
It is suitable with aluminum shutter boxes installed inside the window opening or on the external building facade.
Watch the installation video of a Central Lever projection frame on the external building facade.
Central lever model is recommended for windows over 1400 mm in width
Write to us : www.slpspocal....

[@jadsoueidi9068]

Should that box go between the top edge of the widow and the ceiling ?!
I know this might be a dumb question . But we are renting an apartment and that is how it s installed .
We can hear everything to the outside and the house is freezing cold !
Shouldn’t these be installed in the wall rather than being a continuation to the window that connects to the ceiling ?!
So what I’m saying is if the shutter cases that I have now are removed there is a good 30cm gap between the ceiling and the top part of the window 😂

[@ahmed22ahmed39]

The price is 15 years old