Window performance / Discussions

...windows with double pane windows. I live in Sacramento, Ca where summer temperatures exceed 115 degrees Farinhight, and winters freeze. Choosing the right window frame is a big part of finding the best performing window. In a warmer climate you are not faced with the same extreme differential in temperatures as cold cl...

...window and frame work, it looks like there might be caulking around windows and door on the outside. Now I'm wondering if there is any insulation around any of the  windows and doors that were all installed about ten years ago. My question is should I stuff the gaps with rockwool and seal it with tape on the inside?  A...

...performance from your windows and to reduce thermal bridging through the rough opening, they are best set inside a bit. You can see a thermal image of heat loss through windows on this page. And have you chosen windows yet? We have a page on how to choose the best windows and what to look for in window performance. Cho...