I had submitted my permit application, assuming I would NOT have ceiling lights. Instead I had advised a system of what I call beam lights, which is basically wall outlets placed on the walls up above the bottom of the exposed beam; they can each feed a track light or a hanging light fixture.
Since then, Mark has been suggested that we put in a lot of recessed lights.
So my question is whether it is possible - and feasible, legal, etc. - to install any kind of recessed lighting within the "sandwich'ed" ceiling/roof construction of (from bottom to top) 1.5" ceiling/roof decking (2x8 T&G), 5/8" plywood, 4-1/2" rigid foam, 1/2" denseboard, roofing membrane. I really don't know what kind of wiring can be run up there, and I know very little about LED lights.
I know that conventional recessed housings are way to tall. What I am wondering is if modern low voltage or LED lighting will allow much more shallow housing.
As far as I know, there is really nothing in the residential market that fit my requirement. But I did find some commercial product series, like PDQ lighting, Solavanti (it looks like Solavanti might be included in the offerings from PDQ), and Wiedamark.