Energy efficient windows / Green Building & Sustainable Home Renovation Information & Advice

...windows and green building techniques in the Ecohome Green Building Guide and these pages below: Window film treatments to reflect heat and lower AC bills Are gas filled windows worth the extra cost? Aerogel : super insulation for windows and walls Suspended film windows - triple pane performance without the we...

...windows will leak more air and lose more heat than new ones, but there is an energy variable to consider with replacement of windows as well. Purchasing a new window will also have its own energy and carbon footprint in terms of raw material extraction, manufacturing and transportation.   As warm air touches windows i...