Double panes of glass in addition to a layer of a gas is the best way to insulate a window.
Argon filled windows problems.
Argon typically represents a better value overall especially with double pane windows.
A prominent concern with argon filled windows is an issue with leakage.
Argon is a colourless and odourless gas so it cannot be detected by a human which means the argon could leak from your windows over time and you would not realise it.
Windows with krypton fill tend to have lower u values better insulating quality and are more expensive than argon filled windows.
Because old windows are generally single paned they can be drafty and inefficient.
Argon gas filled windows can leak.
Unfortunately it is generally agreed upon that argon gas dissipates out of the windows over time minimizing the effectiveness.
These windows can have problems with argon gas leakage.
One cause of leakage is an improper sealing of the window.
Replacement windows these days are often sold as double pane versions that not only feature two panes of glass compared to one on single pane windows but also are filled with argon gas in between the panes.
The gas typically argon leaks out from between the two panes or settles to the bottom of the window causing the glass to bow inward.
The problem with old windows.
This can be a problem in double pane gas filled windows.
An inability to detect the gas could lead to a situation where the gas leaks without any.
However the rate.
If you re considering replacement windows or even a whole house renovation and energy efficiency as well as high energy costs are a concern you should consider installing argon gas filled windows.
Double pane windows are the solution for old inefficient windows.
These qualities make it difficult for people to detect.
Being cheaper argon is usually used to fill the wider 1 2 inch spaces between panes in double pane windows while krypton.
Argon gas is a common method for insulating windows.
If the window seal has even a small gap in it.
In summary double and triple paned windows are often filled with the gases argon or krypton to reduce convection within the window units to improve the building s overall energy efficiency.
Argon is inert and will not cause this problem.