I tried to google and all I could find was a company in the U.K. That sells the screen, mosquito screen, for doors and windows. But, my google search tries it’s best to stay local, so I might not be picking up the full breadth of what’s available in the UK.
This could be a real niche market to be tapped if it doesn’t exist yet. I can sit out on my covered patio during the rain too, I know it rains quite a bit in Scotland. As long as the rain isn’t blowing in, and I don’t in lightening storms.
I’m pretty sure they do have all weather rooms, or 4 season rooms, whatever they are called, in the U.K. Lots of windows with screens, maybe a sliding door out to the garden. Then you can open all the windows if you want to feel more outside. The 4 season room probably needs to be built more soundly regarding building codes.
I don’t know if the midgie is smaller than some of our bugs here. We do have solar screen that has an extremely tight weave, I have it on my screened door that faces south, but it barely lets the wind in, and it’s more difficult to see through.