ProductsCoatings

Hall Arts
Dallas, TX

Low-E Coatings.

We know coatings. 40 years ago, Viracon started coating glass and today we influence the options, quality, performance and breadth of coatings for architectural glass in North America and beyond.
Low-E coatings are thin layers of metal applied to glass to improve solar performance. The specific coating needed for a given project is typically dictated by a required solar performance or desired appearance.
Viracon’s Product Configurator simplifies the process of selecting specific glass coating and color combinations.
Coatings_IGU Surfaces Zoom

Maximize Performance Surface #2.

In Viracon’s fabrication process, Low-E coatings are applied after heat treating, resulting in glass that is significantly flatter with less distortion than most architectural glass available on the market today.
To achieve the best performance, place the Low-E coating on surface #2 of an IGU, or surface #4 of an IGU with a laminated outboard.
Our broad selection of Low-E coatings is compatible with printed patterns on the same surface for outstanding solar performance and aesthetics, and can be applied to clear, low-iron, mid-iron, or tinted glass substrates.
An additional Low-E coating can be added for improved solar or thermal performance.

Selections Options.

Viracon offers a wide array of single, double, and triple silver Low-E coatings to meet the aesthetic and performance goals of the project.
Coatings, in combination with choices of substrates, laminates, and configurations define the final characteristics.

Coating FamiliesExplore.

Viracon coatings are grouped into families that have common characteristics.

Viracon Product Descriptions

Viracon glass products are comprised of a primary and detailed description.
  • The primary description includes an alphanumeric code for each coated glass product, indicating the overall unit thickness, exterior glass substrate, coating and unit configuration.
  • The detailed description identifies the glass ply thickness and type, coating and surface designation, and spacer/fill information.

Product Code Description Example

1" VRE1-4725 Insulating
Primary Description
1/4" clear, VRE-4725 #2
1/2" space - argon filled
1/4" clear
Detailed Description

Coating and Substrate Identifier

VRE
1
-
4725
Coating Family
The first portion of the code represents the coating family.
Coating VLT Performance
In our nomenclature, the available coatings have varying degrees of Visible Light Transmittance (VLT) represented by the 2-digit number following the dash.
If the number following the dash has 4-digits, the second 2 digits represent SHGC on Clear glass.
Coating Performance
47 = 47% VLT
25 = 0.25 SHGC
Substrate Glass Color
In our nomenclature, the glass substrate color number, shown above, appears after the coating family and before the dash.
VRE
1
-
4725
Coating Family
The first portion of the code represents the coating family.
Substrate Glass Color
In our specification, the glass substrate color number, shown above, appears after the coating family and before the dash in our nomenclature.
Coating Performance
In our nomenclature, the available coatings have varying degrees of Visible Light Transmittance (VLT) represented by the 2-digit number following the dash.
If the number following the dash has 4-digits, the second 2 digits represent SHGC on Clear glass.
1"
VR
E
1-47
25
Overall Thickness
1"
Coating Family
Viracon VRE Low-E Coating
Exterior Ply Glass
201-Clear Substrate
Coating Performance
47 = 47% VLT
Insulating
25 = 0.25 SHGC
VE-85
VE-2M
Description
Our clearest Low-E coatings, offering exceptional transparency, minimal exterior reflectance, and a neutral appearance. 
Aesthetics
Combine with Viracon’s broad selection of fabrication options to enhance performance and aesthetics.
Product CodeVLTExterior ReflectanceWinter U-ValueSummer U-Value SCSHGC
VE-8576% 12%0.270.240.63 0.54
VE-2M70% 11%0.250.210.430.37
(1” 0A) - 1/4” (6mm) Clear, Low-E coating #2 - 1/2” (13.2mm) space—Argon filled - 1/4” (6mm) Clear
VE-42 | VZE-42
VE-48 | VZE-48
VUE-50
Description
Low-E coatings with lower exterior reflectance and varying ranges of color.
Enhanced
VZE indicates an enhanced version of the Low-E coating. An additional neutral Low-E coating is used to improve SHGC while minimally affecting aesthetics.
Aesthetics
Combine with Viracon’s broad selection of fabrication options to enhance performance and aesthetics.
Product CodeVLTExterior ReflectanceWinter U-ValueSummer U-Value SCSHGC
VE-4237%19%0.270.240.36 0.31
VZE-4233%18%0.240.20 0.270.24
VE-4847%17%0.270.240.430.37
VZE-4842% 16%0.240.200.330.28
VUE-5048%11%0.25 0.210.28 0.25
(1” 0A) - 1/4” (6mm) Clear, Low-E coating #2 - 1/2” (13.2mm) space—Argon filled - 1/4” (6mm) Clear
VRE-38 | VZRE-38
VRE-46 | VZRE-46
VRE-54 | VZRE-54
VRE-59 | VZRE-59
VRE-65 | VZRE-65
Description
Viracon VRE Low-E coatings deliver moderate to high exterior reflectance, creating a brighter and more vibrant facade. 
Enhanced
VZRE indicates an enhanced version of the Low-E coating. An additional neutral Low-E coating is used to improve SHGC while minimally affecting aesthetics.
Aesthetics
VRE coatings offer a range of visible light transmittance and reflectivity, creating a dynamic appearance that balances aesthetics, natural light and solar heat gain performance. Combine with Viracon’s broad selection of fabrication options to enhance performance and aesthetics. 
Product CodeVLTExterior ReflectanceWinter U-ValueSummer U-Value SCSHGC
VRE-3836%44%0.250.210.280.23
VZRE-3832%43%0.240.200.230.20
VRE-4647% 32%0.250.220.350.30
VZRE-4638%33%0.240.200.380.24
VRE-5447%32%0.26 0.220.35 0.30
VZRE-5442%31%0.240.200.300.26
VRE-5953% 30%0.260.220.380.33
VZRE-5947%29%0.240.200.330.29
VRE-6559%27%0.250.21 0.420.37
VZRE-6552%25%0.240.200.360.32
(1” 0A) - 1/4” (6mm) Clear, Low-E coating #2 - 1/2” (13.2mm) space—Argon filled - 1/4” (6mm) Clear

Viracon Second Generation VRE Family

VRE-3117
VRE-4423
VRE-4725
Description
These 2nd generation Low-E coatings have lower exterior reflectance and SHGC, but maintain the vibrant appearance of the original VRE family.
Aesthetics
VRE coatings offer a range of visible light transmittance and reflectivity, creating a dynamic appearance that balances aesthetics, natural light and solar heat gain performance. Combine with Viracon’s broad selection of fabrication options to enhance performance and aesthetics. 
Product CodeVLTExterior ReflectanceWinter U-ValueSummer U-Value SCSHGC
VRE-311731%28%0.310.200.160.16
VRE-442344%25%0.250.210.260.22
VRE-472547%25%0.250.210.250.25
(1” 0A) - 1/4” (6mm) Clear, Low-E coating #2 - 1/2” (13.2mm) space—Argon filled - 1/4” (6mm) Clear
VNE-53
VNE-63
Description
These triple silver Low-E coatings have low-moderate exterior reflectivity with high visible light transmission, outstanding solar control, and superior aesthetics.
Aesthetics
Create a neutral exterior appearance with an impressive balance of visible light transmission and solar heat gain coefficient that doesn’t sacrifice light for performance. Combine with Viracon’s broad selection of fabrication options to enhance performance and aesthetics.
Product CodeVLTExterior ReflectanceWinter U-ValueSummer U-Value SCSHGC
VNE-5349%19%0.24 0.200.19 0.22
VNE-6382%10%0.250.210.320.28
(1” 0A) - 1/4” (6mm) Clear, Low-E coating #2 - 1/2” (13.2mm) space—Argon filled - 1/4” (6mm) Clear
VNG-4022
Description
This neutral-gray reflective coating combines a mid-range exterior reflectance, neutral-gray aesthetic, and exceptional solar performance for a balanced visible light transmittance and SHGC.
Aesthetics
Combine with Viracon’s broad selection of Low-E coatings to enhance U-Value performance without affecting appearance.
Product CodeVLTExterior ReflectanceWinter U-ValueSummer U-Value SCSHGC
VNG-402240% 19%0.240.200.210.21
(1” 0A) - 1/4” (6mm) Clear, Low-E coating #2 - 1/2” (13.2mm) space—Argon filled - 1/4” (6mm) Clear
VLE-39
VLE-47
VLE-51
VLE-57
Description
Viracon’s VLE Low-E coatings deliver moderate to high exterior reflectance, creating a brighter and more vibrant façade. Our VLE Low-E coatings are compatible next to the interlayer.
Aesthetics
VLE coatings offer a range of visible light transmittance and reflectivity, creating a dynamic appearance that balances aesthetics, natural light and solar heat gain performance. Combine with Viracon’s broad selection of fabrication options to enhance performance and aesthetics. 
Product CodeVLTExterior ReflectanceWinter U-ValueSummer U-Value SCSHGC
VLE-3939%43%0.950.860.350.30
VLE-4746% 33%0.950.860.41 0.36
VLE-5151% 31%0.950.860.430.38
VLE-5756% 28%0.950.860.45 0.24
(9/16” 0A) - 1/4” (6mm) Clear, Low-E coating #2 - .060" (1.52mm) Clear PVB - 1/4” (6mm) Clear
Description
RoomSide® Low-E improves U-Value of dual pane insulating glass by up to 20% lowering energy costs and improving performance to satisfy sustainable building designs.
This interior surface #4 coating reflects heat back into the room to improve thermal efficiency. In combination with a high-performance coating on surface #2, a VTS® spacer, and argon fill, U-Value performance is comparable to a triple insulating unit without the additional expense, glazing system complexity, weight and footprint.
View our RoomSide Low-E Sell Sheet
Aesthetics
RoomSide is available with all of Viracon’s high-performance Low-E coatings in insulating, laminated insulating, and insulating laminated glass configurations.
Product CodeVLTExterior ReflectanceWinter U-ValueSummer U-Value SCSHGC
RoomSide®61%11%0.20 0.170.310.27
VNE1-63 (Reference)60%10%0.250.210.320.28
(1” OA ) – ¼” (6mm) Clear, Low-E coating #2 - ½” (13.2mm) space - Argon filled - ¼” (6mm) Clear
Viracon’s enhanced coating color specification sets a new standard for reflected color uniformity – ensuring consistent color with less visible variation and greater architectural cohesiveness across IGUs.
ASTM C1376, the Standard Specification for Pyrolytic and Vacuum Deposition Coatings on Flat Glass, sets the limit of exterior reflected color non-uniformity for coated glass within a glazed unit and from one glazed unit to the next. Visually observable differences are possible within this specified range and can be quantified by calculating a Delta E value. The criteria defined in ASTM C1376 as the glazing industry standard is a Delta E reflected color variation of 4.0 or less.
When requested, Viracon can provide a premium product offering with a Delta E average of 2.0 or less for reflected color, which is half the industry standard.
  • Offered with any of our available raw glass substrates
  • Available with a collection of our most popular Low-E coatings
Enhanced Delta E Coating Collection
12 of our most popular, high-performance coatings are available to be engineered to a tighter Delta E standard.
VRE-38
VRE-46
VRE-54
VRE-59
VRE-3117
VRE-4725
VRE-4423
VE-2M
VE-85
VNE-53
VNE-63
VRE-3117
This premium option is ideal for projects that prioritize aesthetics and performance in equal measure. Contact your Viracon representative to learn more.