It might not be a chic designer’s choice, but it does the job! This was outside some kind of metal worker’s workplace. I saw sparks flying from grinders and heard clanging and the general din of metal being worked on inside.
Besides the quirkiness of the structure, the A-shape frame of the ‘roof’ et al, I had a grin at the wire that holds the door closed. I assume that the door slides up and down in order to gain access into the interior.