Often this is due to the long term presence of water in the area beneath the glass.
Vinyl window seal failure.
But igus have known to have seal failure even when new.
So let s talk a bit about some of the potential problems you ll see when choosing vinyl windows.
Vinyl windows can be virtually maintenance free but occasional a window seal failure cause quite a headache.
Water leaks through glazing because vinyl changes in dimension with changes in temperature much more than glass long.
Transportation over the mountains for example may cause seal failure due to changes in atmospheric pressure.
The cause is a failure in the edge seal that secures the individual panes of glass.
With these changes comes issues in structural integrity air infiltration and problems with just opening and closing the window.
A common problem a lot of homeowners face is the expansion and contraction of their vinyl windows during hot and cold weather.
The warping can also do some damage to the seal.
Vinyl windows contract and expand.
In the picture below you can see an example of a vinyl window seal failure that we had to repair at our home.
Leaks and problems with vinyl windows 1.
Seal failures occur in vinyl windows just as they occur in wood and aluminum windows.
The odds of a new window having a broken seal are small nonetheless it is a good reason to buy windows with an amazing warranty but the natural deterioration of the seal with age is the biggest culprit of moisture between the panes of glass.
The multi pane glass develops condensation or fogginess that can t be wiped off from either side of the window.
Window seal failure is a common problem for aging windows and an inevitable issue for most residential and commercial buildings with insulated dual or triple pane glass.
Water leaks through window frame joinery back in the day before vinyl window manufacturers found out how well the.
If the seal failure isn t major then your window will be able to prevent moisture build up between the panes for a little while.
A failed seal around the insulated glass piece of a window allows moisture laden air to get in between the panes.
Window seal failures are usually pretty easy to diagnose once you know what to look for.
There are a few things that can happen when your window seals fail nothing condensation or dirt grime build up.
Have the seal fixed.
Fortunately a broken window seal is not a serious issue in most cases.
While window seal failure removes much of the energy saving features found with double or triple pane windows it does not negatively impact the function or look of the window aside from the occasional presence of window condensation.
Usually igu windows experience seal failure gradually in the years following installation in a home.