fly screens ?

I think you will find that the blinds fitted by A/S come as a complete unit with the fly screen incorporated. Do your front 2 windows in the habitation area not open?

As has been said the fly screens are just a standard thing. We do actually use the fly screens on the fixed windows since they do add a bit of privacy at night when the interior lights are on, and this is useful by the bed in our Kingham since otherwise you are sleeping close against the very flimsy Remis pleated cardboard blinds. The fly screens are easier to draw than the curtains.

Firms such as this one

[url=https://www.vanpimps.co.uk/product/peugeot-boxer-mwb-lwb-extralwb-pair-privacy-tinted-opening-windows-free-fitting-kit-worth-40-00/?utm_source=Google shopping&utm_campaign=VP Shopping Feed 2022&utm_medium=cpc&utm_term=38794&gclid=EAIaIQobChMI3PnBpqH0_gIVwu3tCh1GFA87EAQYDiABEgJ9r_D_BwE][You must be registered and logged in to see this link.]

make replacement windows. The opening apertures tend to be small, I suppose because they are glass-within-glass and there might be strength issues if the openings were bigger. I have looked at replacing one of the windows next to the bed to give added ventilation at the back but unfortunately the boiler flue is right outside, so not a good idea there!