The amazing thing is that you have the luxury of approaching the architect about these issues. Laminated glass should address the security along with any alarm or security system you plan on installing, though the laminated glass may have size limitations. Regarding the waterproofing you should contact the architect, contactor and waterproofing subcontractor, or see about hiring an independent waterproofing specialist who can detail and warranty the condition. As a design consideration, make the lower area a garden or gallery or sculpture area and upper should be all glass. Maybe a garden roof there too if accessible or visible. In any case looks like an amazing place!!

how about this new style? you attach sheers to the tops of regular curtains. you could do up/downs, but if they can never be opened, this allows you to have the tops always open to a good height.

Hello Namrata. Even if you do not intend to get the false ceiling done, you can still get the desired lighting in your home. You could do so by having rafters (made of ply and veneer/laminate combination) attached to the ceiling and run the electrical wires through it. Design the rafters in a specific pattern so that it gives a fresh look to your space and also serves your purpose of having the ceiling lights/pendant lights/chandeliers installed.

Hello there, If you don't want to put load on your foundation, why don't you put a pergola of cement/steel/wood instead of a concrete roof slab? You could do a bit of landscaping too and could fully utilise the terrace. Regards, Aurum Ideas and Spaces Bhubaneswar