How to Spot a Failed Window Seal
Fogging between the panes means the inert gas fill is gone and the insulating value has dropped. Here is how to identify failed seals in your San Diego home and decide whether repair or replacement makes more sense.
What you'll learn
- The difference between surface condensation and inter-pane fogging, and why only one signals a failed seal
- How to test suspected seal failure on a warm sunny afternoon versus a cool morning
- When an IGU replacement (glass swap only) is worth it versus a full window replacement
- What the fog stain pattern tells you about how long the seal has been failing
Step by step
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