INDUSTRY LEADER AND ENERLUX PARTNER – CARDINAL GLASS

The choice of glass for your windows and doors is as important to the overall performance as the quality and fit of the profiles.   

The energy efficiency of EnerLux fiberglass products is further enhanced by our choice to exclusively use Cardinal Glass, maker of the most advanced glass products in the industry, trusted worldwide by architects, designers, and manufacturers.

Cardinal Glass offers a range of high-performance glass packages designed to enhance the energy efficiency and comfort of Enerlux fiberglass windows. The key differences between these packages lie in their solar heat gain coefficient (SHGC), U-factor, and visible light transmission (VLT). Our experienced team of professionals will help you find the best glass package for your project’s needs and budget.

Glass Package 180

LoE-180 High Solar Gain Glass

Cardinal LoE -180 delivers excellent cold weather performance – its insulation value (U-factor) is a low 0.26, and with a high solar heat gain coefficient (SHGC) of 0.69, it lets the winter sun’s heat pass into the home. It also blocks 71 percent of the sun’s harmful UV rays. While blocking out the cold and UV rays, it lets the daylight stream in – more light than ordinary low-e glass.

Glass Package 180

LoE-270 All Climate Glass

Cardinal’s LoE-270® glass is the perfect solar tuned glass for all season comfort. It reduces solar heat gain by 50% or more when compared to ordinary glass. Although it is a clear glass, LoE-270 even outperforms ordinary tinted glass typically used in sunny climates. And though it’s coated, LoE-270 lets the light shine in to warm your house during the cooler winter months.

Glass Package 180

LoE-366 Low Solar Gain Glass

The full-year benefits of LoE -366 can be clearly seen. When the temperature soars in the summer, ordinary window glass just can’t beat the heat and tinted glass spoils the view. LoE -366 is formulated to reject solar heat while maintaining attractive visibility keeping the heat out while letting light in. As a matter of fact, LoE -366 glass is our ultimate in performance and clarity among all of Cardinal’s clear coated products. What’s more, LoE -366 provides the ultimate in fading protection. It blocks 95% of the sun’s damaging ultraviolet rays – a leading cause of fading (visible light also contributes to fading) – so your furniture, carpets, curtains and wall coverings stay beautiful for years.

Glass Package 180

LoE-340 Solar Control Glass

When it comes to reducing solar heat gain from the blazing western sun, LoE-340 simply has no equal. And because it’s not tinted, you enjoy a number of other advantages as well. First, there’s the cost savings of no tint. Then you avoid the disadvantages of tinting: the potential for thermal stress breakage and the potential need to heat treat the glass. Tinted glass has several other glaring deficiencies. Regular tinted glass works by absorbing sunlight, so the glass becomes hot in the sun. The color of the glass also changes with its thickness. On the other hand, LoE-340’s appearance and performance remain the same regardless of glass thickness. What’s more, LoE-340 has a very high LSG (light to solar gain ratio) of 2.17. So even though solar gain is being controlled, plenty of visible light is still allowed inside.

Glass Package 180

LoE-Quad 452+ Solar Control Glass

In hot, sunny climates, Quad 452+ clearly outshines ordinary window glass. It is formulated specifically to manage solar heat gain while maintaining clear views, taking more of the burden off the AC unit to keep conditions comfortable inside. It also provides exceptional fade protection, blocking 99% of UV rays from reaching the interior, protecting your furniture, carpet, and other furnishings to a degree that is comparable to laminated glass. One other benefit is that Neat+ comes standard on all Quad 452+ glass repelling 40% more dust and dirt than uncoated glass.

Glass Package 180

LoE-i89 Energy Booster

Give your windows that extra boost of performance with one additional LoE coating on the interior surface of your windows.  With our triple pane IGs, i89 will boost the full-frame energy performance by 0.02 U on average, however there is a slight reduction in condensation resistance.

GLASS PERFORMANCE DATA BY WINDOW STYLE 

Casement Windows
Casement Windows
  Panes U-Factor SHGC VT CR
180 2 0.29 0.42 0.53 57
180/i89 2 0.25 0.41 0.52 45
270 2 0.28 0.25 0.47 58
270/i89 2 0.24 0.25 0.46 46
366 2 0.27 0.19 0.43 58
366/i89 2 0.24 0.19 0.42 46
340 2 0.28 0.13 0.27 59
452 2 0.27 0.16 0.35 58
180/180 3 0.22 0.36 0.46 65
180/180/i89 3 0.2 0.22 0.4 53
270/180 3 0.22 0.23 0.4 66
270/180/i89 3 0.2 0.22 0.4 53
366/180 3 0.22 0.17 0.38 66
366/180/i89 3 0.2 0.17 0.37 54
340/180 3 0.18 0.11 0.24 74
452/180 3 0.21 0.14 0.3 67
Awning Windows
Awning Windows
  Panes U-Factor SHGC VT CR
180 2 0.29 0.42 0.53 57
180/i89 2 0.25 0.41 0.52 45
270 2 0.28 0.25 0.47 58
270/i89 2 0.24 0.25 0.46 46
366 2 0.27 0.19 0.43 58
366/i89 2 0.24 0.19 0.42 46
340 2 0.28 0.13 0.27 59
452 2 0.27 0.16 0.35 58
180/180 3 0.22 0.36 0.46 65
180/180/i89 3 0.2 0.22 0.4 53
270/180 3 0.22 0.23 0.4 66
270/180/i89 3 0.2 0.22 0.4 53
366/180 3 0.22 0.17 0.38 66
366/180/i89 3 0.2 0.17 0.37 54
340/180 3 0.18 0.11 0.24 74
452/180 3 0.21 0.14 0.3 67
Fixed Casement Windows
Fixed Casement Window
Panes U-Factor SHGC VT CR
180 2 0.27 0.52 0.63 58
180/i89 2 0.22 0.5 0.62 46
270 2 0.25 0.29 0.54 57
270/i89 2 0.22 0.29 0.55 47
366 2 0.26 0.22 0.52 59
366/i89 2 0.21 0.22 0.51 47
340 2 0.26 0.14 0.31 59
452 2 0.24 0.18 0.4 58
180/180 3 0.15 0.45 0.56 73
180/180/i89 3 0.14 0.43 0.55 60
270/180 3 0.15 0.27 0.49 73
270/180/i89 3 0.14 0.26 0.48 61
366/180 3 0.15 0.2 0.45 73
366/180/i89 3 0.14 0.19 0.44 61
340/180 3 0.15 0.13 0.27 73
452/180 3 0.18 0.16 0.35 67
Low-Profile Picture Windows
Low-Profile Picture Window
  Panes U-Factor SHGC VT CR
180 2 0.29 0.57 0.7 58
180/i89 2 0.23 0.56 0.68 46
270 2 0.26 0.32 0.6 57
270/i89 2 0.23 0.32 0.61 47
366 2 0.27 0.24 0.57 59
366/i89 2 0.22 0.24 0.56 47
340 2 0.27 0.16 0.34 59
452 2 0.24 0.18 0.4 58
180/180 3 0.16 0.5 0.62 73
180/180/i89 3 0.14 0.47 0.6 60
270/180 3 0.16 0.3 0.55 73
270/180/i89 3 0.14 0.28 0.53 61
366/180 3 0.15 0.22 0.5 73
366/180/i89 3 0.14 0.21 0.49 61
340/180 3 0.15 0.14 0.3 73
452/180 3 0.18 0.16 0.35 67
Patio Doors
Patio Doors
  Panes U-Factor SHGC VT CR
180 2 0.28 0.47 0.56 58
180/i89 2 0.24 0.43 0.55 47
270 2 0.27 0.3 0.51 59
270/i89 2 0.23 0.29 0.5 48
366 2 0.27 0.2 0.46 59
366/i89 2 0.23 0.2 0.45 49
340 2 0.27 0.14 0.28 59
180/180 3 0.19 0.39 0.5 70
180/180/i89 3 0.18 0.37 0.48 59
270/180 3 0.19 0.27 0.45 70
270/180/i89 3 0.17 0.26 0.44 60
366/180 3 0.19 0.18 0.41 71
366/180/i89 3 0.17 0.17 0.4 60

PERFORMANCE DATA DEFINITIONS  

U-Factor
A measure of the rate of non-solar heat loss or gain through a material or assembly.  It is expressed in units of Btu/hr-sq ft-F (W/sq m-C).  The lower the U-factor, the greater a window’s resistance to heat flow and the better its insulating value.
R-Factor
A measure of the resistance of a glazing material or fenestration assembly to heat flow.  It is the inverse of the U-factor (R=1/U) and is expressed in units of hr-sq ft-F/Btu.  A high R-value window has a grater resistance of heat flow and a higher insulating value than one with a low R-value.
Solar Heat Gain Coefficient (SHGC)
A measure of how well a product blocks heat caused by sunlight. The SHGC is the fraction of incident solar radiation admitted through a window (both directly transmitted and absorbed) and subsequently released inward. SHGC is expressed as a number between 0 and 1. The lower a window’s solar heat gain coefficient, the less solar heat it transmits in the house.
Visual Transmittance (VT)
A measure that shows how much light comes through a product. The visible transmittance is an optical property that indicates the amount of visible light transmitted. VT is expressed as a number between 0 and 1. The higher the VT, the more light is transmitted.

Get a Free Estimate on Our Fiberglass Windows. We’ll get it back to you within a day!