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SunGuard IS 20 on Clear

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SunGuard® IS 20

SunGuard IS 20

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Boost window performance to meet energy codes

An add-on interior coating to the fourth surface, SunGuard IS-20 coated commercial glass helps prevent heat loss in the north and reduce cooling costs in the south for ideal energy savings. This coating is durable and easy to maintain, making it an excellent choice for long-range service.

Download the IS20 Technical Flyer

Product information

Substrates

Guardian UltraClear 6-10 mm
Clear Float 5-10 mm

Applications

Windows
Skylights
Facades
Roof window
Curtain walls
Doors

Manufacturing Options

Heat Strengthened
Heat Soaked
Tempered
Bent
Laminated

Recommended Coating Positions

Surface 6 (triple IGU)

Maximum Size

102"x144"

Edge Deletion

Glass Type

Low E

Glass Functions

Thermal insulation

Fabrication Options

Can be used Monolithic
Can be in an Insulating Glass Unit

Appearance

Neutral
Clear

Calculate Performance Values & Generate BIM Files

Generate product performance data for custom glass make-ups and create detailed BIM object files for your project

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Performance data

The glazing make-up suggestions below are pre-defined to provide examples of commonly used combinations of products. There are many other glass combinations available at Glass Analytics.

Default Performance Data
Performance Calculations

Monolithic
Double Glazed

Monolithic

GLASS: Guardian Clear Glass (North America) Glass, 1/4" (6mm) (2-SunGuard® IS 20 Interior Surface LE (North America))

Calculated Values are in accordance with NFRC2010

Performance Values

Visible Light

Transmittance (τv)

87 %

Reflectance outside (ρv)

9 %

Reflectance inside (ρv)

9 %

General Color Rendering Index (CRI)

98.5

Ultraviolet

Transmittance UV (τuv)

63 %

Solar Energy

Solar transmittance (τe)

73 %

Reflectance outside (ρe)

9 %

Reflectance inside (ρe)

9 %

Solar absorptance (αe)

17 %

Solar Heat Gain Coefficient (SHGC)

0.76

Shading Coefficient (sc)

0.88

Thermal properties

Winter night U-Value

0.667 Btu/hr·ft²·F

Summer day U-value

0.523 Btu/hr·ft²·F

Light to Solar Gain

Light to Solar Gain (LSG)

1.14

Embodied Co2

[eq. kg/m²] A1-A3

18.81

Double Glazed

GLASS: Guardian Clear Glass (North America) Glass, 1/4" (6mm)

GAP: 100% Air 12.7mm

GLASS: Guardian Clear Glass (North America) Glass, 1/4" (6mm) (4-SunGuard® IS 20 Interior Surface LE (North America))

Calculated Values are in accordance with NFRC2010

Performance Values

Visible Light

Transmittance (τv)

78 %

Reflectance outside (ρv)

16 %

Reflectance inside (ρv)

16 %

General Color Rendering Index (CRI)

96.9

Ultraviolet

Transmittance UV (τuv)

48 %

Solar Energy

Solar transmittance (τe)

61 %

Reflectance outside (ρe)

14 %

Reflectance inside (ρe)

14 %

Solar absorptance (αe)

25 %

Solar Heat Gain Coefficient (SHGC)

0.68

Shading Coefficient (sc)

0.79

Thermal properties

Winter night U-Value

0.361 Btu/hr·ft²·F

Summer day U-value

0.345 Btu/hr·ft²·F

Light to Solar Gain

Light to Solar Gain (LSG)

1.15

Embodied Co2

[eq. kg/m²] A1-A3

34.31

Performance Calculations

SunGuard® IS 20

SunGuard IS 20

Monolithic Not Laminated Monolithic Laminated Double Glazed Not Laminated Double Outer pane Laminated Double Inner pane Laminated Double Inner and Outer pane Laminated Triple Glazed Not Laminated Triple Outer pane Laminated Triple Inner pane Laminated Triple Inner and Outer pane Laminated

With the performance calculator, you can quickly calculate the performance data that matches your own glazing make-up

1 Pane
2 calculation format
3 Results

1 Outer Pane
2 Inner Pane
3 cavity
4 calculation format
5 Results

1 Outer Pane
2 Middle Pane
3 Inner Pane
4 cavity
5 calculation format
6 Results

Choose a glazing

Monolithic

Not available for this product
Double

Not available for this product
Triple

Not available for this product

Monolithic

Monolithic Laminated

Double Glazed

Double Outer pane Laminated

Double Inner pane Laminated

Double Inner and Outer pane Laminated

Triple Glazed

Triple Outer pane Laminated

Triple Inner pane Laminated

Triple Inner and Outer pane Laminated

Outer Pane

Base glass *

There is only one substrate available for this product.

PVB interlayer thickness *

There is only one Interlayer available for this product.

Backing glass *

There is only one substrate available for this product.

Base glass thickness *

There is only one thickness available, to calculate other thickness' please go to Glass Analytics

Glass thickness are symetrical and represent the glass to be laminated

Coating on surface 1 *

There is only one coating available

Coating on surface 2 *

There is only one coating available

Coating on surface 3 *

There is only one coating available

Coating on surface 4 *

There is only one coating available

Middle Pane

Base glass *

There is only one substrate available for this product.

Base glass thickness *

There is only one thickness available, to calculate other thickness' please go to Glass Analytics

Coating on surface 3 * Coating on surface 5 *

There is only one coating available

Coating on surface 4 * Coating on surface 6 *

There is only one coating available

Inner Pane

Base glass *

There is only one substrate available for this product.

PVB interlayer thickness *

There is only one Interlayer available for this product.

Backing glass *

There is only one substrate available for this product.

Base glass thickness *

There is only one thickness available, to calculate other thickness' please go to Glass Analytics

Glass thickness are symetrical and represent the glass to be laminated

Coating on surface 5 * Coating on surface 3 * Coating on surface 7 *

There is only one coating available

Coating on surface 6 * Coating on surface 4 * Coating on surface 8 *

There is only one coating available

Coating on surface 7 * Coating on surface 5 * Coating on surface 9 *

There is only one coating available

Coating on surface 8 * Coating on surface 6 * Coating on surface 10 *

There is only one coating available

Choose your calculation format

Standardization *

There is only one calculation standard available

Unit Display *

There is only one unit available for this calculation standard

Results

Calculated Values are in accordance with

Performance Values

For more details on the performance values displayed and Embodied CO2 please <a href="https://www.guardianglass.com/us/en/tools-and-resources/resources/performance-value-terms" target="_blank">click here</a>

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SunGuard IS 20

Monolithic

GLASS: Guardian Clear Glass (North America) Glass, 1/4" (6mm) (2-SunGuard® IS 20 Interior Surface LE (North America))

Calculated Values are in accordance with NFRC2010

Performance Values

Visible Light

Transmittance (τv)

87 %

Reflectance outside (ρv)

9 %

Reflectance inside (ρv)

9 %

General Color Rendering Index (CRI)

98.5

Ultraviolet

Transmittance UV (τuv)

63 %

Solar Energy

Solar transmittance (τe)

73 %

Reflectance outside (ρe)

9 %

Reflectance inside (ρe)

9 %

Solar absorptance (αe)

17 %

Solar Heat Gain Coefficient (SHGC)

0.76

Shading Coefficient (sc)

0.88

Thermal properties

Winter night U-Value

0.667 Btu/hr·ft²·F

Summer day U-value

0.523 Btu/hr·ft²·F

Light to Solar Gain

Light to Solar Gain (LSG)

1.14

Embodied Co2

[eq. kg/m²] A1-A3

18.81

SunGuard IS 20

Double Glazed

GLASS: Guardian Clear Glass (North America) Glass, 1/4" (6mm)

GAP: 100% Air 12.7mm

GLASS: Guardian Clear Glass (North America) Glass, 1/4" (6mm) (4-SunGuard® IS 20 Interior Surface LE (North America))

Calculated Values are in accordance with NFRC2010

Performance Values

Visible Light

Transmittance (τv)

78 %

Reflectance outside (ρv)

16 %

Reflectance inside (ρv)

16 %

General Color Rendering Index (CRI)

96.9

Ultraviolet

Transmittance UV (τuv)

48 %

Solar Energy

Solar transmittance (τe)

61 %

Reflectance outside (ρe)

14 %

Reflectance inside (ρe)

14 %

Solar absorptance (αe)

25 %

Solar Heat Gain Coefficient (SHGC)

0.68

Shading Coefficient (sc)

0.79

Thermal properties

Winter night U-Value

0.361 Btu/hr·ft²·F

Summer day U-value

0.345 Btu/hr·ft²·F

Light to Solar Gain

Light to Solar Gain (LSG)

1.15

Embodied Co2

[eq. kg/m²] A1-A3

34.31

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SunGuard IS 20

Boost window performance to meet energy codes

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Product information

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