Maybe I found a cheaper alternative, not sure if someone here gave a link or I searched but the one I was looking at you affix magnetic clips on the frame and then they have some special plastic (polycarbonate or similar).
I think I'd be somewhat nervous of a single pane of glass but I imagine they must have thought of that. Do you have a recommendation for a site/brand?
Interestingly, the 'clip on' approach is very similar to something we were thinking of doing as a way to introduce mesh bug-screens for our bedroom window. An inner frame we can remove outside the summer and store in the loft.
I think I'd be somewhat nervous of a single pane of glass but I imagine they must have thought of that. Do you have a recommendation for a site/brand?
Interestingly, the 'clip on' approach is very similar to something we were thinking of doing as a way to introduce mesh bug-screens for our bedroom window. An inner frame we can remove outside the summer and store in the loft.