What causes failed insulated glass units? Unfortunately there is not one thing but a combination of things that cause broken seals in glass. All of these factors play a role:
- Thermal expansion and contraction
- Wind loading
- The type of installation
- Initial quality of the fabrication
How do I prevent my glass from failing? Short of keeping your windows in a climate controlled warehouse time and exposure will ultimately take their toll. Remember when replacing your failed glass choose quality over price. The labor cost is the same regardless of who manufactured the glass.