The JS was outfitted with new vinyl windows. These double paned windows are better insulators. They keep warmth inside in the Winter and cold inside during the Summer.

In the Summer, one may think that it would be a good idea to let the breeze in during the day. Experience has proven that opening the windows is only a good idea if the outside temperature is actually cooler than the inside. So at night, let the cool air in. Open the windows in the dining room. But close them early in the morning to trap the cool air.

Keeping the windows open in upstairs bedrooms might still be a good idea, as the cool air seldom lasts long upstairs and rooms tend to get real stuffy. Otherwise a ceiling an might help to circulate the air without letting the hot air inside the house. Time will tell on that one.

Eric Shamay's write up of the window project