Climate Guard Glass Options

Choose from our uShield Glass Packages or Specialty Options
Select a glass package that best meets your needs for energy efficiency & thermal performance. We are also able to build custom glass packages with any combination of the glass options represented in the table below as well as additional options available upon request. Please ask your salesperson for details.
Data in table reflects NFRC tested ClimateGuard ThermaForce Double Hung window
Performance Glass Packages

Essential Weather Protection

Superior Energy Efficiency

Maximum protection & Efficiency

Good

better

premium

U-Factor

.27

.24

.19

Solar Heat Gain Coefficient

.21

.27

.24

Visible Trasmittance

.49

.50

.42

Air Leakage

.04

.04

.04

Thermal Performance

Cost

Cardinal Glass

Triple coated DS Loe3-366, Clear

Double Coated Loe2-270, EPS Loe2

Double Coated Loe2-270, clear, Loe2-270

Glass Unit

3/4″ double pane

3/4″ double pane

1.25″ double pane

Gas Fill

Argon

Argon

Argon

Spacer System

Intercept Warm Edge

Intercept Warm Edge

Intercept Warm Edge

Neat Glass, tempered, frosted, laminated glass & other options available

Specialty Glass Options

Tempered & laminated glass offer improved strength, safety & noise control. Obscure frosted glass provides privacy for intimate spaces such as bathrooms. Tinted glass minimizes the glare of the sun blocking harmful rays and keeping rooms with direct sunlight exposure significantly cooler.
Specialty Glass Options
Tempered Glass
Frosted Obscure Glass
Laminated Glass
Tinted Glass
Best Use
Strength and safety
Intimate spaces that require privacy
Increased safety and noise control
Mitigate the glare of the sun
Features
  • Toughened or strong glass similar to that used in automobile windshields
  • Used where injuries from broken glass are a concern
  • Usually shatters into small, square fragments instead of sharp shards when broken
  • Has no polymer interlayer to hold it together like laminated glass, so glass does fall apart
  • Low-E insulating glass with a textured surface
  • Lets the sun shine in while obscuring the view
  • Ideal for bathrooms or bedrooms
  • Polymer interlayer that holds the glass together if it’s shattered
  • Provides added protection from intruders
  • Reduces outside noise
  • Helps block the sun’s rays
  • Keeps rooms that get direct sun cooler
Privacy
Aesthetics
Solar Control
Strength
Safety
Noise Control

Cardinal Loe2-270 Glass

Who says you can’t do anything about the weather? Cardinal LoĒ²-270® glass delivers year-round comfort in all types of weather. In summer, it rejects the sun’s heat and damaging UV rays. In winter, it reflects heat back into the room.

Cardinal LoĒ²-270 is very similar to our LoĒ²-272® glass, only with slightly more solar control, while LoĒ²-272 offers a little more light transmittance.

Regardless of where your home is located, choosing windows that provide you with the highest level of comfort and energy savings year-round is extremely important. And choosing the right glass for your windows is the most important factor in that decision. Go beyond ordinary low-e glass. Let LoĒ²-270 help you handle the weather – any weather.

Solar control for just about the coolest windows under the sun.

When the temperature is heading to the top of the thermometer, ordinary window glass simply welcomes in the heat. Cardinal LoĒ²-270, however, has been specially formulated to reject the sun’s heat and damaging rays and keep your home cool and comfortable. The patented LoĒ²-270 coating provides high performance solar control and visual clarity. The end result of all this engineering is that Cardinal LoĒ²-270 provides the ultimate in comfort because it reduces window heat gain by 50% or more when compared to ordinary glass.

Frigid outside, cozy inside.

During cold weather, the insulating effect of your windows has a direct impact on how your rooms feel. Typically, 75% of the exposed surface of a window is glass, and the temperature of the room-side of the glass directly affects the air temperature in the room. The better insulated the window glass, the warmer your room will be.
In fact, the Efficient Windows Collaborative suggests that when glass surface temperatures fall below 52°F, there is a risk of thermal discomfort. To maintain the best comfort during the winter, select a glass product that produces surface temperatures that will stay above this point during the coldest outdoor conditions.

Inside glass and outside temperatures.

The table below compares the room-side center of glass temperatures of different glass types against two different winter conditions.

  • INSIDE GLASS AND OUTSIDE TEMPERATURES
  • Single-pane, clear
  • Double-pane, clear
  • Ordinary low-e (air fill)
  • LoĒ² – 270 (air fill)
  • LoĒ² – 270 (argon fill)
  • Outside temp -20°F (-30°C)
  • 0°F (-19°C)
  • 37°F (2°C)
  • 46°F (7°C)
  • 49°F (9°C)
  • 52°F (10°C)
  • Outside temp +20°F (-10°C)
  • 31°F (-3°C)
  • 51°F (9°C)
  • 57°F (13°C)
  • 58°F (14°C)
  • 60°F (15°C)
The superior insulating capability of Cardinal LoĒ²-270 is a key factor in the construction of comfortable windows for cold climates. The dramatic comfort improvement from windows with warm glass surfaces also means the relative humidity of the indoor air can be controlled and maintained properly. Proper humidity levels (not too much, not too little) will improve comfort and promote a healthier living environment.

Save energy with glass so smart, it can control your comfort.

Although windows provide beautiful views and wonderful natural light, they can also account for up to 50% of the heating and cooling energy consumed in a home. In the summer Cardinal LoĒ²-270 keeps your home cool and comfortable by rejecting the sun’s heat and damaging rays. In the winter it helps your home stay warm and cozy by blocking heat loss to the cold weather outside. In short, it can save energy year around.
* Thermostat settings are the largest variable in establishing the heating and cooling energy savings potential with window replacements. If you tolerate the discomfort from your current windows and don’t change thermostat settings with the weather, consider the savings suggested from the “Fixed Thermostat” column. If on the other hand you frequently adjust the thermostat, add space heaters to compensate for cold rooms, or close drapes/blinds to block the sun consider the additional savings suggested in the “Equal Comfort” column.
Definitions
Heat/Cool portion of your energy bill: DOE estimates that in 2005 the average house spent $2,003 on utilities and that 43% of this total ($886) is for heating and cooling energy.

Savings values are average of multiple locations within climate zone.

“Average” house as described in the Buildings Data Book The model house is described as a mid-1970’s single-story dwelling with natural gas furnace, central air-conditioning, adequate insulation, and double-pane windows.

Window orientation set as uniformly distributed on all sides to represent a neighborhood average and the total window area set to 15% of the floor area.

Interior shading devices are presumed to be closed 50% of the time throughout the year.

“Fixed Thermostat” conditions are 70°F for heating and 75°F for cooling.

“Equal Comfort” thermostat settings determined using window thermal comfort research from the University of California at Berkeley The existing double-pane windows used heat/cool thermostat setpoints of 72°F/74°F to match the comfort of LoĒ²-270 glass at 70°F/78°F.

House heat/cool energy simulations used the Resfen program from Lawrence Berkeley National Lab

  • Glass
    Performance
  • Single-pane, clear
  • Double-pane, clear
  • Ordinary low-e
  • LoĒ² – 270
  • Visible Light
    Transmittance
  • 90%
  • 82%
  • 76%
  • 70%
  • Solar Heat Gain
    Coefficient
  • 0.86
  • 0.78
  • 0.72
  • 0.37
  • Winter U-Factor
    (Air / Argon )
  • 1.04 / —
  • 0.48 / —
  • 0.34 / 0.30
  • 0.30 / 0.25
  • UV
  • 0.71
  • 0.58
  • 0.50
  • 0.14
  • Fading
    Transmission
  • 0.84
  • 0.75
  • 0.68
  • 0.53
Definitions
Note: All values calculated using Window 6.3. Emittance of ordinary (pyrolitic) low-E is 0.16.

Solar Heat Gain Coefficient – (SHGC) – The amount of solar radiation that enters a building as heat. The lower the number, the better the glazing is at preventing solar gain.

Fading Transmission – The portion of energy transmitted in a spectral region from 300 to 600 nanometers. This region includes all of the ultraviolet energy and part of the visible spectrum, and will give the best representation of relative fading rates. The lower the number, the better the glass is for reducing fading potential of carpets and interior furnishings.

U-Factor – This represents the heat flow rate through a window expressed in BTU/hr·ft²·°F, using winter night weather conditions of 0°F outside and 70°F inside. The smaller the number, the better the window system is at reducing heat loss.

Cardinal actively supports and participates in the National Fenestration Rating Council (NFRC). Windows with LoĒ³-366 that are rated and certified by the NFRC can comply with Energy Star requirements in all regions of the country. Northern zone will likely require the addition of LoĒ-i89 on the 4th surface to comply with U-Factor requirements.

The difference is clear.

Cardinal LoĒ²-270 is ideal for all weather conditions in most climates. In summer, its patented coating blocks 86% of the sun’s harmful ultraviolet rays and 63% of the sun’s heat. It even outperforms the tinted glass often used in warm climates. You can see out and the light shines in, with no heavy bronze or smoke colored tints to darken the personality of your home. In winter, it reflects heat back into rooms.

LoĒ²-270 can be purchased in hurricane-resistant laminated glass in a variety of shapes and sizes.

Cardinal Loe2-366 Glass

Cardinal LoĒ³-366® glass is the ultimate performance glass. It just might make all other low-e glass obsolete. LoĒ³-366 delivers the ideal balance of solar control and high visibility. And it provides the highest levels of year-round comfort and energy savings.
It’s also the one glass you can use to be compliant in every ENERGY STAR zone – in a double-pane window. Couple it with LoĒ-i89®, and you’re compliant in the North. Its low SHGC makes it compliant throughout the rest of the country as well. It’s the perfect glass wherever you live.

Beats the heat. Keeps the view.

When the temperature soars, ordinary window glass just can’t handle the heat. And tinted glass spoils the view. Cardinal LoĒ³-366, however, has been specially formulated to reject the sun’s heat without affecting the view. It lets more light in and keeps more heat out. So your home stays cool and comfortable. Our patented LoĒ³-366 coating provides the ultimate in performance of all our LoĒ products.
What’s more, LoĒ³-366 provides exceptional fading protection as well. It blocks 95% of the sun’s damaging ultraviolet rays (a leading cause of fading), so it will help your furniture, carpets, curtains and wall coverings stay beautiful for years to come.

It’s the perfect cold remedy, too.

During cold weather, the insulating effect of your windows has a direct impact on how your rooms feel. Typically, 75% of the exposed surface of a window is glass, and the temperature of the room-side of the glass directly affects the air temperature in the room. The better insulated the window glass, the warmer your room will be.
In fact, the Efficient Windows Collaborative suggests that when glass surface temperatures fall below 52°F, there is a risk of thermal discomfort. To maintain the best comfort during the winter, select a glass product that produces surface temperatures that will stay above this point during the coldest outdoor conditions.

Inside glass and outside temperatures.

The table below compares the room-side center of glass temperatures of different glass types against two different winter conditions.

  • Product
  • Single-pane, clear
  • Double-pane, clear
  • Ordinary low-e (air fill)
  • LoĒ³ – 366 (air fill)
  • LoĒ³ – 366 (argon fill)
  • Outside temp
    -20°F (-30°C)
  • 0°F (-19°C)
  • 37°F (2°C)
  • 46°F (7°C)
  • 49°F (9°C)
  • 52°F (11°C)
  • Outside temp
    +20°F (-10°C)
  • 31°F (-3°C)
  • 51°F (9°C)
  • 57°F (13°C)
  • 58°F (14°C)
  • 60°F (15°C)
The superior insulating capability of Cardinal LoĒ³-366 is a key factor in the construction of comfortable windows for cold climates. The dramatic comfort improvement from windows with warm glass surfaces also means the relative humidity of the indoor air can be controlled and maintained properly. Proper humidity levels (not too much, not too little) will improve comfort and promote a healthier living environment.

Three layers of silver make the clear difference.

For years, Cardinal has been setting the standard for energy efficient glass. Top-of-the-line residential window and door manufacturers all rely on our high quality. Our patented state-of-the-art sputter coating processes are unmatched by any other glass manufacturer.
Now we’ve raised the bar. LoĒ³-366 adds a third layer of silver coating. Result: a clear coating that blocks even more solar gain, reflects heat, and lets the light stream in. LoĒ³-366 actually outperforms the tinted glass often used in warm climates.

You’re always in season with LoĒ³-366 glass.

LoĒ³-366 is the ultimate performance glass, with energy savings throughout the year, in every part of the country. All with exceptional visibility. It’s the perfect glass wherever you live.
LoĒ³-366 can be purchased in hurricane-resistant laminated glass, as well as in a variety of shapes and sizes.

ENERGY STAR, everywhere.

The goal of the ENERGY STAR Windows program is to be better than code. LoĒ³-366 is the one low-E product that can qualify in all 4 climate zones: superior insulating value in the north, and clear solar control for everywhere else in the country.

  • Glass
    Performance
  • Single-pane, clear
  • Double-pane, clear
  • Ordinary low-e
  • LoĒ³ – 366
  • Visible Light
    Transmittance
  • 90%
  • 82%
  • 76%
  • 65%
  • Solar Heat Gain
    Coefficient
  • 0.86
  • 0.78
  • 0.72
  • 0.27
  • Winter U-Factor
    (Air / Argon )
  • 1.04 / —
  • 0.48 / —
  • 0.34 / 0.30
  • 0.29 / 0.24
  • UV
  • 0.71
  • 0.58
  • 0.50
  • 0.05
  • Fading
    Transmission
  • 0.84
  • 0.75
  • 0.68
  • 0.43
Definitions
Note: All values calculated using Window 6.3. Emittance of ordinary (pyrolitic) low-E is 0.16.

Solar Heat Gain Coefficient – (SHGC) – The amount of solar radiation that enters a building as heat. The lower the number, the better the glazing is at preventing solar gain.

Fading Transmission – The portion of energy transmitted in a spectral region from 300 to 600 nanometers. This region includes all of the ultraviolet energy and part of the visible spectrum, and will give the best representation of relative fading rates. The lower the number, the better the glass is for reducing fading potential of carpets and interior furnishings.

U-Factor – This represents the heat flow rate through a window expressed in BTU/hr·ft²·°F, using winter night weather conditions of 0°F outside and 70°F inside. The smaller the number, the better the window system is at reducing heat loss.

Cardinal actively supports and participates in the National Fenestration Rating Council (NFRC). Windows with LoĒ³-366 that are rated and certified by the NFRC can comply with Energy Star requirements in all regions of the country. Northern zone will likely require the addition of LoĒ-i89 on the 4th surface to comply with U-Factor requirements.

Cardinal Neat Glass

Let nature service your windows

Cardinal introduces Neat® naturally clean glass. It harnesses the sun’s UV rays to loosen dirt so water can rinse it away, leaving windows virtually spotless. Your windows will stay cleaner longer and will clean easier.
Homeowners and builders will enjoy the effects that a little sun, rain and Neat glass brings to windows. Not only that, because Neat is applied to Cardinal’s LoĒ® coated glazings, homes stay cooler in the summer and warmer in the winter. Clearly, Neat glass is the choice for your windows.

It all starts with the sun

The titanium dioxide layer of Neat glass reacts chemically with the sun’s UV rays and causes organic materials that are on the glass to decompose. It works even on cloudy days, as 80% of UV radiation gets through cloud cover. Thus when it rains, the decomposed dirt no longer clings to the glass, easily rinsing away.

Smoother glass is cleaner glass

And Neat glass is ultra smooth. A thin layer of silicon dioxide makes Neat glass exceptionally smooth and hydrophilic, much smoother than ordinary hydrophobic glass. This allows water to disperse evenly or “sheet off” and evaporate quickly, greatly reducing water spotting.

Added advantages of Neat

Cardinal’s sputtering process used in Neat glass allows more visible light transmittance than any comparable competitive product. Plus, it’s also less reflective than the competition.

  • Product
  • Pilkington Activ™ on clear
  • PPG SunClean® on clear
  • Neat™ on clear
  • Clear
  • Visible
    Transmittance
  • 84%
  • 79%
  • 90%
  • 90%
  • Exterior Visible
    Reflectance
  • 15%
  • 19%
  • 8%
  • 8%

LoĒ comfort and efficiency

When Neat glass is fabricated with Cardinal’s low-emissivity LoĒ coatings, it provides maximum comfort indoors. Therefore, you enjoy year-round comfort inside the home and an average of 25% energy savings annually.

Neat glass, clearly the top choice

Easier to clean window glass just got better with Cardinal’s Neat naturally clean glass. No manual activation required, just a little help from the sun. The results are almost spotless windows, less time cleaning and more time enjoying the view.
Select double-pane, tempered or laminated configurations, in custom shapes and sizes and with any of our LoĒ coatings. All are available with Neat glass.