Reasonably priced triple pane is certainly not overkill no matter where you live. A good triple pane window can offer an overall R-value in excess of 5, block up to 95% of all UV rays, and reduce outside noise by as much as 50% over standard dual pane windows. The Department of Energy advises that a triple pane R-5 window is 40% more efficient in the home than standard dual pane windows with Low-E and Argon. Modern technology has made triple pane much more cost effective giving you a quicker return on your investment.