The figure below figure illustrates the characteristics of a typical double-glazed window with a moderate solar gain Low-E glass. These Low-E glass products are often referred to as sputtered (or soft-coat products) due to the glass coating process. (Note: Low solar gain Low-E products are also called sputtered coatings.) Such coatings reduce heat loss and let in a reasonable amount of solar gain and are suitable for climates with both heating and cooling concerns. In heating-dominated climates with a modest amount of cooling or climates where both heating and cooling are required, Low-E coatings with high, moderate or low solar gains may result in similar annual energy costs depending on the house design and operation.

Arch's Solar-Control Low-E's

• Guardian LE-63
• Guardian LE-50
• Guardian LE-40
• Guardian AG-43
• Guardian NP-61
• Guardian SN-68
• PPG Sungate 100
• PPG Solarban 60
• PPG Solarban 80
• AFG TIR
• AFG TIAC-40
• AFG TIAC-36

Some Available Thicknesses
1/8" (3.0mm), 3/16" (5.0mm), 1/4" (6mm)