With tilt and turn windows I can only think of two options, either face mounted shutters to the actual window, which the fabricator might offer, or a rod hung on the face of wall above the window opening, to avoid the window catching on them. A track sheer or drape will work aesthetically, but practically?? Presuming when the windows open, so too would the curtain, it only matters at the end of day when you want to close up and have privacy, so perhaps a holland blind (pull down) so it's least conspicuous.

http://www.ecostardoubleglazing.com.au/upvc-double-glazed-windows/

Thanks for this suggestion. I need to be as snug as possible in the cold winter months here in Beechworth, ( the rest of the year is glorious), and I'm looking for the most effective insulation for the windows. I believed cellular blockouts would achieve this, but then thought Double glazing + blockout might be "over the top". I can't see draped curtains being so effective; perhaps I might settle for the blinds, and add some curtains for decorative effect. I can pay $3000.00 if they will achieve the insulation I need.

Hi Joey! If privacy is an issue for you, go with translucent roller blinds. If sunlight is an issue for you, a nice block out blind will do the trick. If both are an issue, then dual roller blinds will be perfect! Keep in mind, when the roller blinds are down you may need to have the louvre window closed as it will protrude into the blind. We offer a full service, so get in touch with us if you would like any further advice or a quote! - Cass (The Gezellig Room)