Re: Cloudy Windows
As the previous poster said, moisture gets between the panes, causing the fog. Yes, you can replace just the glass, the question is how the window is assembled. Most windows have a weather seal that must be removed from the outside, then they are either caulked or taped to the frame. Once weather strip is removed, cover the window with butcher paper or similar and emboss the window onto the paper. This creates a template for the replacement glass. Take the template to a glass shop for reproduction before continuing with this project.
Originally Posted by sjbraun
Once you've received the replacement glass it's time to remove the old window. With a special blade you can separate the glass from the frame without breaking the glass, which is helpful, however you can just as easily break out the window then use a utility knife and sc****r to remove the glass and clean up the frame. Use all safety gear and equipment if breaking glass. Lay a small bead of clear silicone caulk around the opening, then press the new window into it, shimming the bottom so that there's an even gap all the way around the window. Reinstall the weather strip and you're done.
When the silicone has completely cured, use a fresh, sharp utility knife and paint sc****r to cut and remove any excess silicone that was squeezed out. If you try to remove the silicone before it's cured it will create a very big mess that will be difficult to clean up. Just wait for it to cure.
If you've got cheap windows, then the glass may be held captive within the frame and the only way to remove the glass is to remove the entire window, frame and all, from the house, and disassembling the frame to change the glass. This is a bunch more work and I'd recommend a professional do it for you if you're not a capable DIY'r.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!