PROTECTIVE OVERGLAZE
Protective overglaze is not necessary for a healthy, enduring stained glass window. If not properly installed it can create more problems than it cures. It is important to make a decision based on your own unique circumstances. When protective overglaze is installed, consideration of materials, framing and ventilation is critical.
Potential Benefits
- Significantly decreases wind load exposure
- Can increase energy savings
- Provides vandalism and/or security protection
- May guard against environmental pollutants and some ultra-violet light exposure
Potential Drawbacks
- Inhibits natural ventilation
- May cause retention of condensation
- Limits access for maintenance of windows and millwork
- Offers only minimal energy payback
- Can cause increased heat levels in the stained glass, leading to damage of the window
- May adversely affect the architectural aesthetics of the building
Before After
Bottom section of above window