Create Thermopane

I have a Single Paned Pebbled Glass Stairwell and would like to add interior themopanes to them.
The woodwork is in top shape painted and caulked.
I would like to add spacer/sealant and desiccant between the Pebbled and new thermos.
Is this possable/ advisable?
This is in Anchorage Alaska. Sweating between units is my concern. Thankyou for your comments.

 

Best to have the room humidity as low as possible when you seal it. Custom glass makers sometimes use a needle to inject dry nitrogen between the panes. You'd need a second small opening to let the air out. I imagine you could rig something with an inflater needle for basketballs. If you know an AC man he might let you borrow his dry nitrogen tank.

Worked at a custom shop years ago and we just used window ACs to lower the humidity in the assembly room.

 

You should purchase your double pane insulating glass units from a manufacturer. Not something to DIY. They can probably match the "pebbled glass" with something that's pretty close.

 

Thankyou for your input.
I want to add thermo units from a professional
glass co. to the existing situation. Also would like to seal/space/dessicant the gap between exiting Pebbled glass and the new thermos.

 

Yeah, the reason that probably isn't going to work is because number one, a glass shop would have to make the spacer bar assembly for you, which they fill with dessicant as they assemble it (they are assembled as a complete frame, the frame is set on the glass, another piece of glass is placed on top, and the space between the 2 panes (the edge of the IGU) is sealed with butyl.) The spacer bar has to be perfectly and completely sealed on all 3 sides of the spacer bar. I imagine you are thinking about sealing only 2 sides (your new IGU to your existing pebbled glass), leaving the 3rd side (the outside edge of the dessicant filled spacer bar that you would need to install between the new IGU and your existing pebbled glass) open against what I presume is your wood jamb. More than likely, the desiccant would fail as a result.

What about this as an idea. Instead of installing an IGU up against your existing pebbled glass, what if you take the pebbled glass out, and give it to the company that is making your IGU's (insulating glass units) maybe they would be willing to make a double or triple pane unit for you, using your existing glass as the exterior pane. You could put plywood in the openings in the meantime.

 

I was thinking of sealing all sides of the spacer.
Using a sealant on Pebbled and painted wood simultainiously,
put in desiccant filled spacer -recaulk add thermo, recaulk add trim.
Working fast, using a heat gun to carefully n quickly
dry the glass and edges , just before caulking.
Is butyl the only proper sealant? Can I use Silicone 2?
Cleaner faster application.
I was also going to use large fans w/extra heat to the general
area , not excessive just a 10 - 15 degrees over normal.
Thankyou again for your input.