We have to assemble a lot of floor to ceiling windows, but no way blinds on windows in our rental apartment. Unless we would drill directly into the frame. What is prohibited, however. Chose lightweight PVC blinds. The most serious is a 80x220cm blind that directly to the window frame (plastic) was stuck. Lasts for over a year. The upper strip is glued only to half. Say 40cm assembly line was used. In Baumakrt they told me that this would never hold. So you can be wrong. Did you already have to solve a blind in order to emphasize the ceiling in one place can clean. Just strutting with a fishing line between blind and window. The rest you can get from having alcohol and fingernail. Although takes time but is quite feasible. For me the product is top. Another solution did not exist.