My town is known for making some of the better windows in the industry and nobody here makes one without a thermal break and serious insulation in the frame. Double glazing is the cheap and quick option, triple pane gas-filled with coatings that either draw or repel heat (depending on the application and direction faced) are what most go for these days.
My town is known for making some of the better windows in the industry and nobody here makes one without a thermal break and serious insulation in the frame. Double glazing is the cheap and quick option, triple pane gas-filled with coatings that either draw or repel heat (depending on the application and direction faced) are what most go for these days.