Use Qulits For Insulation In Windows
They used to use quilts in times past for insulated window blinds. Some of these quilts had an oil cloth sewn into them which actually gave them an R-factor of almost 7!
That’s pretty good for a society that we don’t consider as very technologically advanced. These quilts today can still be utilized to insulate your windows in the winter season & they add an exquisite touch of beauty to the window, as well.
In fact, there are several companies that make these types of quilts to be used specifically as blinds. There are also several places you can visit on line that give you patterns to make your own.