Prof. Catherine Flick on Nostr: Hey folks, doing a bit of diy fly screen and I need some ideas for how to mount this ...

Hey folks, doing a bit of diy fly screen and I need some ideas for how to mount this on a sloping roof velux. The screen is supposed to be mounted flush but it won’t work due to the angle required for the screen. Is there something that will let me screw these little catches securely into the wall above the window on an angle without it all wobbling? Image 1 - the angle of the roof showing how the screen needs to be installed. Image 2: the catch that comes with it that clips onto the top.