Hi Robin, Window treatment with louver's Blinds or full length curtains may be installed in conjunction with your louvre windows to help darken interior spaces or provide shading from the sun in any room if required. This also provides for privacy, light, thermal insulation etc. inside your property. When selecting your louver's, remember that the top blade can be fixed to assist with the installation of the blind or curtain above the window. Low profile handles should also be selected as the shape provides a proper fit that won’t get in the way of the curtains when opening or closing them, especially when in the open position. In an internal room, choose a high mounted track with a wave curtain running across the whole width of the window. Also place the curtain rod as high above the window frame to really frame the entire window and cover the louver blinds when closed. This also makes the space appear much larger than what it is and allows the eye to roam to the top of the curtain, making the space also appear to have a higher ceiling than it has currently especially with vertical stripe curtains. (See pic below) Hope this assist you Robin, all the best. Regards, Gregg Churchill - Creative Design Director/Principal Interior Designer Mr Home Staging & Design Co. www.mrhomestaging.com

You could use MDF panelling resembling tonge and groove for three quarters of the height adding a picture rail on top. However this may mean removing skirting and architraves or there may be enough room to butt up to them. This could be painted then you only have to be concerned with a small area at the top.

Thanks for the suggestions. I knew the brains trust would offer good options. Blue board looks interesting. I need whatever I use to be at least 15mm thick so that there aren't any toehold edges between the lattice and the surround frame. Yes we thought of painting the fence and perhaps contrast bamboo in front. Mini orb I don't think would work because the corrugations leave gaps between it and the lattice.

that looks like it might be an expansion joint in a concrete wall and you might be able to fill it with a flexible crack filler and then paint over but the crack will probably reappear as the concrete expands and contracts