How to Check Your Windows Energy Performance
Before spending $10,000 on new windows, check whether your existing windows are the actual source of your energy and comfort problem. Many San Diego homeowners replace windows for an issue that turns out to be air sealing, not glass performance.
What you'll learn
- How to use the incense smoke test to find air infiltration at window perimeters without any tools
- What the NFRC label on your existing windows tells you about current performance
- The difference between heat gain through glass (an SHGC problem) and drafts at the frame (an air-sealing problem)
- How to calculate whether new windows have a reasonable energy payback period for your San Diego home
Step by step
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Rather have a pro handle it?
Insured local window crews across San Diego County. In-home measure, written quote from the crew.
Keep learning.
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.
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San Diego salt air loads up window tracks with salt residue, grit, and oxidation that makes sliders and double-hung windows hard to operate. Clean tracks and lubricated hardware fix most sliding and lifting problems without a replacement.