Double-glazing "industrial" windows for insulation
I live in NYC have a warehouse spaces that has a LARGE window (see attachment) which needs to have the 54 glass panes in the window re-caulked, and some of the panes replaced.
I can remove the putty around the existing glass and install new glass but I'd like to make this entire window better insulated
So, I was thinking of installing double-glased glass panes. Is this do-able and anyone have an approx cost (thousands of $? Many hundreds of $? a few hundred $? Less than a hundred $??) of this sort of thing? Remember, there are 54 individual panes in this window.
[If it is going to be too expensive, I was thinking of doubling-up on the glass panes, sort of making my own double-glazed glass, by placing some strips of foam insulation around the first pane, then placing a second pane right next to that, and holding it all together with glazers' putty -- but I'm worried about condensation between the two panes)