There are a range of options available dependent on whether a single glazed or double glazed solution is required. That in turn may depend on the framing system desired, the performance criteria required and/or the budget that is in place.
Low-E Glass (single glazed): Choose windows with Low-E (low emissivity) glass. Low-E coatings help to reflect heat back into your home during the winter, keeping it warm, and they also reduce the amount of heat that enters your home during the summer, helping to keep it cool.
Double Glazing: Opt for double glazing, which involves two layers of glass with an insulating space in between. This provides better thermal insulation and reduces heat transfer, keeping your home comfortable in both summer and winter.