I live where it gets hot in the summer! One of the upstairs rooms has 3 enormous west facing windows so the hot afternoon sun bakes this room for several hours each day. Even though the windows are double paned, the windows, the shades, and the room really heat up by early evening. We have a swamp cooler, and a ceiling fan in this room, but it’s an uphill battle … [Read more...] about How to Insulate Windows from the Summer Sun (Cheaply!)