Good morning everyone,
Needing a little bit of help regarding this.
We have in our house a big old bay window built out of what looks like 2x4s in a grid fashion and with old glass. The window has always been fine and we never though of replacing it especially because we never saw the need for it in terms of improvement and ROI. We have storm windows on the outside so it's always been ok regarding cold - prbably not as good as triple pane windows but good enough that wouldn't justify the investment for changing it. The window is a 3x4 windows measuring about 90-+ inches wide and 55 or so high. Each square is 21 inches wide by 17 wide.
However one of our storm windows broke and it's been condensing a lot to the point water pools at the bottom of that grid.
When looking for prices regarding a new storm window it was pretty much the same price of a custom built IGU unit, so I went for an IGU thinking of just putting in place in the cavity.
Now this is where I have some doubts and here are some pictures to help visualize it:
The detail pictures of the grid you can probably see the outer storm window. It seems that the current glass pane is missing silicone on the edges as well.
My idea was doing the following:
But a 3/4' wood to work as a spacer and frame it around the perimeter of the current glass. Put some silicone between such wood spacer and current glass pane.
Then, place the new IGU against the wood spacer also with some sort of sealant on the edges.
To finalize everything, again, frame a 3/4 or some other sort of frame to act as a stoper/block. I would be using glass setting blocks at the bottom as well.
In essence this would make it a triple pane window? and in the grids that still have the storm window it would be a rudimentary quadruple pane window. Or is it better to just break the fixed window pane and put the IGU in place alone?
Would this method be okay? Any other methods that would be more proper? Do i need glazing tape at all or is some type of window clear silicone ok?
Im a big fan of do it once and do it right and I am a perfectionist so don't be afraid to tell me what the correct way is. I'm not afraid of DIY.
Thank you
EDIT: I added some annotations on picture #2