
Vinyl Windows
State of the art technology is used to combine a vinyl frame with an insulated glass unit (IG) to form one of the most efficient and durable vinyl window and patio door lines available. Two main components are used to bring this incredible product to life – Glass and Vinyl.
Vinyl windows decrease the heat transfer issues of aluminum windows while eliminating the maintenance required for wood windows. All of our vinyl products come with a UV Inhibitor in the frame which makes them resistant to fading, insulated designs which offer energy efficiency, and fusion-welded corners for durability.
Insulated Glass Units
Combining two pieces of glass with an aluminum spacer increases durability, helps with wind load resistance, and creates a highly effective insulator. When the two units of glass are combined they create an air pocket which acts as one of the best sound control and insulating systems available. The aluminum spacer decreases condensation much more effectively than an aluminum fame.
Insulated Glass Units (IGs) also decrease the amount of heat loss through a window. This is known as the U-factor. Depending on the combination of glass used in an insulated unit, the U-factor may be higher or lower. The lower the U-factor the better the insulated unit is in reducing heat loss, and therefore more efficient.
By adding a Low-E Coating to an insulated glass unit, you can significantly increase the energy efficiency.
Low-E Coating
Low-E is a term for a coating that can be applied to glass. This coating helps to serve two main functions – controlling heat loss and reducing ultraviolet rays. By controlling the effects of the sun’s rays, the special coating can deflect long-wave radiation in the summer and increase solar ray absorption in the winter. Basically it keeps the heat out in the summer and the heat inside in the winter. The overall effect of low –E is energy savings year round while minimizing damage to carpet and furniture caused by harmful rays.
Capital Glass offers a wide selection of Vinyl, Wood, and Aluminum Windows.


