THE FACT ABOUT SECONDARY GLAZING THAT NO ONE IS SUGGESTING

Krypton is chosen because it insulates the top and won’t dissipate through the glass. To help keep the gas contained, the panes have to be nicely sealed from the frame. If the seal breaks and moist air will get into the gap, the window turns cloudy. The one remedy is to switch it.And in the summer? They hold the heat out, so your AC isn't really