Roof insulation from KfW 55 to KfW 40 on the floor of the attic

do you happen to have pictures of those loophole windows? I only know them from the house I currently live in. Two years ago, the exterior facade there was retrofitted with 36 cm bricks and ETICS, so now it also has a properly thick wall. Actually, I don’t find it that bad—apart from the initial adjustment to the very deep exterior window sills. But as I see it, a KfW40 is generally no longer unequivocally economical and roughly speaking usually unprofitable. Thanks.