Every once in a while, when we meet with potential customers in San Diego, we get asked about triple-pane replacement windows. These questions often come from homeowners who are looking for the most energy-efficient windows on the market and have done some research before meeting with us. They see that most of the replacement windows sold in San Diego are double-pane windows, but that triple-pane windows are also an option. They assume that triple-pane windows will be an upgrade that will help them achieve maximum energy efficiency in their homes. We then have to tell these homeowners that we don’t actually recommend—or even sell—triple-pane windows. Here’s why: Homes in San Diego Don’t Really Benefit from Triple-Pane Windows Triple-pane windows are good at preventing conductive …