Our Double Glazing Insulated Glass (IG) unit with 28mm Warm Edge Spacer Bars and argon filled achieves a Ug Value of just 1.2 W/m2k.
There is also a 36mm Triple Glazing option which achieves a Ug Value of just 0.8 W/m2k, making it one of the most energy-efficient systems on the market.
Of course, if you manufacture or supply your own glazing, we can provide you with unglazed bifold doors that will easily take your IGs.