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Halo2jak 05-20-2013 08:20 PM

Replacing the glass in single pane wood windows.
My craftsman style 1 story house was built in 1926, with nice stained woodwork and some old wooden windows with counter weights tied to sash cords. The glazing on the windows needs replaced very badly. Most of the windows dont open due to them being painted shut from the outside. Im going to restore the windows because i want to keep the house somewhat original, and i dont have the money to buy 13 brand new windows. The windows are single pane double hung, with grids in the top sash but not in the bottom sash. The thickness of the glass is barely more than 1/16" (maybe 5/64"?) Some of the panes in a few of the windows are cracked, so I was thinking maybe it's time to replace the glass in ALL of the windows. What glass would give me the best sound proofing and insulating factors from the outside Indiana weather? And would it even be worth replacing all the glass or just the cracked panes? Thanks!


Halo2jak 05-20-2013 08:33 PM

I forgot to mention, my current windows are drafty and not good at blocking outside noise. I also don't want glass that's too thick, because then ill need heavy counterweights.

oh'mike 05-21-2013 04:53 AM

I suggest double strength glass----go to a glass shop and ask about cost and look at the thickness.

Halo2jak 05-21-2013 07:10 AM

Thanks mike! I'm having a glass shop come over and take measurements, and I will ask him when he comes over.

Windows on Wash 05-27-2013 08:21 AM

+1 to oh Mike's advice.

Minimum upgrade would be to double strength glass.

After that, see if they have an option for a double pane unit (these will be expensive though).

Do the windows have storms? If not, it would be the time to consider that as well.

mj12 05-27-2013 04:02 PM

I am surprised you would know about the heavier counter weights. So many people do not know that. If you want to do a full restore than remove the glass and all the glaze you can. I use a blow torch, careful with the wood if you are going with a stain. You could use a heat gun as well. Plan on breaking the glass. It is not that hard to cut glass, install it and re glaze. Otherwise, lightly pick out the lose glaze and re glaze, paint the glaze after maybe three months, no sooner, if possible.

Halo2jak 05-28-2013 10:22 AM

The windows have a track on the bottom half of the outside window opening, but there are no storms. The house didn't have storm windows when we moved in a few years ago. That's something I'm definitely going to look into when fall comes around.

I work at PGW delivering autoglass, so I'm able to deal directly with a glass shop that we service locally, and get prices under retail.

Right now I can get 1/8" double strength glass for the panes at $2 a piece, and big bottom sash glass piece for $7 a piece, putting my cost just above $20 a window. I know they buy 4 x 8 sheets for a lot cheaper than that price, but it seemed reasonable to me since they are taking the time to cut around 110 pieces of glass for my project.

Right now I'm using a heat gun to remove the old glazing and a glazing tool to scrape off the old glazing. It's working all right, but it will be better now that I know I can just be rough with it and break the old glass. Before I was being very careful as to not break the old panes because I wasn't 100% sure about replacing the glass. But I also didn't want my current aged glass next to new replaced glass if I just replaced the broken panes.

Thank you all for your responses!


Halo2jak 05-28-2013 01:11 PM

Back glazing?
The panes did not have any back glazing on them when I took them out. Only the glazing on the outside of the window. Should I apply some backglazing to the panes before i put the new glass in? Thanks!


Windows on Wash 05-28-2013 03:00 PM

Don't really need it if they are glazed properly on the exterior.

Halo2jak 05-28-2013 03:38 PM

1 Attachment(s)
Picture of how my windows look.

Oops, the pic is upside down lol. Sorry about that

Halo2jak 05-28-2013 03:41 PM

1 Attachment(s)
Current progress on the top sash on window number 1, with one pane fully glazed.

mj12 05-28-2013 05:30 PM

One thing, maybe save that old glass if it is real cool looking with the bubbles and thicker at the bottom. If it is just old and nasty then never mind. Also, stainless steel razor blades will NOT scratch glass.

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