Thermal Industries is
proud to offer our
customers products with
the ENERGY STAR label.
Thermal Industries offers two optional insulating glass packages constructed of Low-Emissivity (LoE2) Glass: Dual Pane and Triple Pane Insulating Glass. LoE2 glass is treated with a thin transparent coating of metal oxide and silver. As shown in the diagram at right, LoE2:
(1) Allows natural light to freely enter your home.
(2) During winter months, long-wave heat energy radiating from indoor objects is reflected back into the house keeping your home warm while lowering heating costs.
(3) In the summer, outdoor long wave heat energy, radiating from objects is reflected back outside, lowering cooling costs. It also reduces the penetration of ultra-violet rays to minimize fading of carpet and draperies.
Peak Performance™ Glass
The Peak Performance™ LoE2 Glass package is a dual-pane insulating glass system constructed of one glass lite of high performance LoE2 Glass and one lite of clear glass.
The air space between the two lites of glass contains Argon gas. Argon is a colorless gas that is denser than air. It increases the insulating value of the glass unit as well as providing insulation from outside noise. Intercept® Warm-Edge Technology seals the glass unit.
Peak Performance™ LoE2 Glass Performance Values* | |
R-Value | 3.94 |
U-Factor | .25 |
Solar Heat Gain Coefficient (SHGC) | .31 |
Ultraviolet Light Transmission (UV) | .15 |
Visible Light Transmission | 71% |
Super Peak Performance Glass
Super Peak Performance™ glass is a triple-pane glass system constructed of two glass lites of high performance LoE2 Glass and one lite of clear glass.
The two air spaces between the panes of glass contain Krypton gas. Krypton Gas increases the insulating value of the glass unit as well as providing insulation from outside noise. Super Spacer® Warm-Edge Technology seals the glass unit.
Super Peak Performance™ LoE2 Glass Performance Values* | |
R-Value | 9 |
U-Factor | .11 |
Solar Heat Gain Coefficient (SHGC) | .37 |
Ultraviolet Light Transmission (UV) | 4% (96% Blockage) |
Visible Light Transmission | 55% |
ENERGY STAR Qualifications Criteria
All Thermal Industries Window and Patio Door products specified with either our Peak or Super Peak Performance™ Glass Packages are ENERGY STAR® qualified for all 50 states. ENERGY STAR qualified windows keep your home more comfortable year round while helping lower energy bills and save the environment. Click here for more information on ENERGY STAR.
Glass Performance Terms & Definitions:
R-Value: Measures the insulating value, or resistance to heat gain or loss. The larger the number, the better the resistance to heat flow. The R-Value is equal to one (1) divided by the U-Factor.
U-Factor: Measures how well a product prevents heat from escaping. The lower the U-value, the greater a window’s resistance to heat flow and the better its insulating value, the slower the rate of heat flow. Note the U-Factor is equal to one (1) divided by the R-Value.
Solar Heat Gain Coefficient (SHGC): measures how well a product blocks heat caused by sunlight. The lower a window’s SHGC, the less solar heat it transmits.
Ultraviolet Light Transmittance: Portion of the solar spectrum that is both visible and invisible to the human eye. Can cause fabric fading and degrading. Can also cause eye damage from prolonged exposure.
Visible Light Transmittance: Measures how much light comes through a product. The higher the number, the more light is transmitted.
*NOTE: The values listed above are the CENTER OF GLASS performance characteristics. Results are achieved by using Lawrence Berkeley Laboratories Windows 5.2. These values are the highest results achieved by Peak Performance LoE2 Glass using NFRC environmental conditions.
The U-Factor values on The temporary 4" x 6" labels supplied on our window and door products are NFRC results for the ENTIRE WINDOW or DOOR UNIT, both vinyl AND glass components combined. These values are achieved by the certifying agency by analyzing the entire window's thermal performance. Therefore, these numbers relate to the entire window’s performance and will generally be lower than the Center of Glass number.
