Double Hung with triple pane. Is it worth it?

So I’ve been looking at both Fibertec triple pane and Marvin elevate double pane, both as double hung.  Unfortunately client is against casements, and likes double hung.  The U-factor on… So I’ve been looking at both Fibertec triple pane and Marvin elevate double pane, both as double hung.  Unfortunately client is against casements, and likes double hung.  The U-factor on…Read MoreGreenBuildingAdvisor