Does the brand name Low-E glass found in some expensive replacement windows outperform soft coat Low-E argon glass found in a majority of replacement windows today?
A. No! Regardless of what a manufacturer calls their insulated glass units, all soft coat Low-E argon glass has a rating of about R-4. Only Heat Mirror windows or triple pane windows will have a higher efficiency rating. The efficiency rating of these types of insulated glass units range from R-5 to R-10 and require more of an investment by the homeowner. As-of March 29, 2009 not all Energy Star Certified windows with Low-E Agron glass meet the new standards set in the American Recovery and Reinvestment Tax Act of 2009 are eligible for the $1,500.00 Energy Tax credit.
Related Questions
- Does the brand name Low-E glass found in some expensive replacement windows outperform soft coat Low-E argon glass found in a majority of replacement windows today?
- How much more does Soft coat Low-E argon glass add to the cost of an average window?
- Where can I buy replacement parts or replacement glass for my Kolbe & Kolbe windows?
