What you see is a failed or broken window seal. Window seals usually fail due to age, the typical window seal will last around 10 – 15 years.
Other reasons a window seal may fail are:
- Pressure changes caused from hot and cold weather
- Building settlement
- Movement from opening and closing
- Objects hitting the window
- Pressure washing
- Deteriorating frameworks
If you can’t stand the look of the hazy windows and decide to replace them make sure to find a company that offers a good warranty plan, look for a 10-20 year warranty.