1. The insulation is of course behind the clinker brick. 2. I have and love clinker bricks, nobody needs to convince me of that. 3. I wanted to illustrate with the example that I do not plan my house design according to the neighbors' taste, but according to my own, of course. 4. a photo: garage roof greening, "sown" slats from 2 years ago and individual plants added later. It holds an incredibly large amount of water, it takes a long time before it trickles in the overflow during heavy rain...