No, *I* wouldn't want a glass roof over my head...but then I'm paranoid. I do think it's a roof, though. Check out the black-and-white floorplan vs the color image. You can see roof details in the color image instead of all of the little alcoves and such. Besides, wouldn't it be sacreligious or rude or something to be walking on your icon?

In a similar, but completely different, vein: I go to trade-shows and it seems like companies buy ads everywhere at these events...even sliced up billboards pasted to thr fronts of steps. I am always amazed when some company buys logos on the little urinal mats in the bathrooms. Not a good combo if you ask me. There are some places you shouldn't put your brand.
M