Overview
A cracked pane needs assessing - laminated glass can hold together safely for weeks, toughened glass typically shatters completely. Either way, the sealed unit will start misting and needs replacement.
Symptoms
- Visible crack.
- Chip.
- Corner damage.
Common causes
- Impact.
- Thermal stress (rare).
When to call a professional
- Any crack in a security door is worth replacing promptly.
Prevention
- Specify laminated glass on new orders.