Windows and Home Insulation

How do windows insulate my home?

The construction and installation of a window determine how well it insulates. Manufacturers play a critical role in creating windows that insulate well. Furthermore, proper installation of a window is extremely important to achieve its full insulating performance. Windows insulate by reducing heat flow, which is the transfer of heat from a warm space to a cooler space. Modern dual-pane windows include an air or gas-filled space between two panes of glass, which insulates much better than a single-pane window. As mentioned above, Low-E coatings also reflect heat energy from the window to further improve its insulating properties.