How does a spacer bar affect the U-value of a window?

A spacer bar and U-value are closely linked because the spacer material impacts heat loss at the window edge. An aluminium spacer increases U-values due to heat conduction, while a warm edge spacer lowers U-values by providing better insulation. Choosing the right spacer bar and U-value combination is key to improving energy efficiency. At Glasscraft, we help customers select the best spacer bar and U-value setup for their needs.

U-Values WER - Window Energy Rating Sealant Desiccant Gas Spacers Manufacture Product