Energy Savings

What Makes the SolarZone™ Insulated Glass Package So Effective?

Since 80% of a window is made of glass, a substantial amount of heating and cooling savings come from improved glass performance.

• Our combination of UV-filtering Low-E Glass (LE), insulating argon gas, and the Intercept™ Warm Edge Spacer System creates significant energy efficiency. Together they can cut damaging UV energy, which can lead to the fading of carpets, curtains and furniture by over 75%.
• The center of glass U-Value of SolarZone Insulating Glass is 50% better than standard insulating glass.
• In summer, up to 58% reduction in solar heat gain helps reduce air conditioning costs.
• The result: SolarZone Insulated Glass Packages can help you save on energy and cooling costs while keeping your home more comfortable.

Comfortable rooms start with a Warm-Edge Spacer System.

Warm edge spacers

Warm edge spacers are so energy-efficient that they keep the glass of the window warmer so your home feels more comfortable in the cooler months. Window World Windows offer two high-performance spacers which will help your home benefit from additional energy efficiencies.

The benefits of the Intercept Space System

The Intercept Spacer System features a unique, one-piece metal alloy, U-channel design that creates an effective thermal barrier to help reduce conducted heat loss through the window. Its sealed, one-piece design makes Intercept spacers stronger and better at retaining insulating gas than many conventional designs. The Intercept Spacer System is nearly 25% more effective than a traditional metal spacer at the edge of the glass unit.

The Optional Foam Spacer System

The optional Foam Spacer System is unique in its patented design. By combining a structural foam spacer with a seal of hot melt butyl to create a non-conductive edge, the non-metal Foam Spacer System eliminates any metal to glass contact, thereby increasing the edge of the glass temperatures by over 16 degrees, which proves to be over 60% more energy-efficient than a traditional metal spacer.

The SolarZone Low-E Glass Package-Making the difference

A warm-edge spacer system is just one way of increasing your window’s performance. SolarZone Low-E glass is an excellent option for increasing your home’s comfort and energy savings year round. SolarZone Low-E glass is created by applying a microscopic, undetectable metallic coating to the second surface of an insulated glass unit. This coating helps to block out solar energy in the summer while retaining furnace heat and allowing warm short wave solar rays in the winter.

Low-E glass filters long-wave radiation from the sun. This reduces solar heat gain from the sun in the summer...keeping your home cooler.

Low-E glass takes on a new duty in winter months. It lets warm solar rays into your home...while blocking the heat in your home from getting out.

The thermographs (below) clearly show the effect that Low-E glass has when contained in an insulated glass unit. The window on the left is a clear insulated glass unit. The heat transmittance, indicated by the green, yellow, and orange colors from the heat scale, is far more apparent than that of the window containing the SolarZone Low-E insulated glass.

The SolarZone Insulated Glass Package

The optional SolarZone Insulated Glass Package combines multi-layered, vacuum deposition Low-E Glass with argon gas and a warm-edge spacer system. These insulated glass packages have proven to be far more effective than ordinary clear glass units. The National Fenestration Rating Council (NFRC), in conjunction with the US Department of Energy, has developed a rating system for window product performance.

One of the most critical NFRC tests is for the window products U-Value, which measures a window resistance of heat loss. The lower the U-Value, the better the window is at resisting heat flow, which results in a window with a greater insulating value.

Another critical NFRC test is for the Solar Heat Gain Coefficient (SHGC). This procedure measures how well a window might block the heat caused by sunlight. Again, the lower the number, the less of the sun’s solar heat the window transmits into the home.

A quick comparison will show that your choice of any optional Solar Zone Insulated Glass Package will outperform any clear or less Low-E glass package, leading to increased energy savings.