KESPEN Window Film One Way Reflective Daytime Privacy Heat Blocking Anti UV Mirror Window Tint for Home and Office, Brown-Silver, 35.4 Inch X 6.5 Feet

Hope this is allowed. This reduced the temperature in my house so much. I am in the US, so not sure on the options in your area, but this is so cheap, easy to apply and well worth it! https://a.co/d/0ikvQpZD