You can see the sky through the roof of this totally with demolition parts made building for the Dutch Design Week in Eindhoven. There are no nails, screws or bolts used but mostly quick tensioners and tie wraps. Next week the whole construction will be undone and the parts go back to the people who brought them in.
The skin is made of recycled plastic from bottles, refrigerators, cars and other stuff first milled and then pressed into tiles. The roof from old disapproved greenhouse roofs. One for Skywatch Friday here.