Free Estimates: (585) 254-8191
Exterior Window Condensation
Condensation on the outdoor surface of an insulating glass unit is not an indication that the insulating glass unit is defective. Under the right set of atmospheric conditions, it is possible to get condensation on the exterior glass surface of an IG unit. Specifically, these conditions are as follows:
• Glass temperature below dew point temperature
• Clear night sky
• Still air
• High relative humidity
• Well-insulating glazings