Help! Does any body know what's happened to the window.

[Janice]

Help! Does any body know what's happened to the window.

Thanks in advance,

Janice

[ProDave]

One of the panes is cracked and that has allowed moisture to get between the panes.  The glass unit needs replacing.

[Janice]

7 minutes ago, ProDave said:

One of the panes is cracked and that has allowed moisture to get between the panes.  The glass unit needs replacing.

Many thanks any idea what might have caused the crack?

[Marvin]

It appears to be the inside pane and not the outside pane, so something in the room may have caused the crack.

 

 

[LowCarbonLiving]

Glass units spontaneously crack all the time. When they crack when still fairly new, it's usually either a manufacturing defect or transport damage. In older windows, it's often heat (differential expansion) distorting the glass and the frame materials unequally. There's a reason why windows on an airplane are round.