Architectural & Commercial
VIG & Hybrid Configurator
Specify standalone Vacuum Insulating Glass or Hybrid VIG substrates. Get instant pricing, IECC 2021 compliance, and full performance data.
All ConfiguratorsVacuum Insulating Glass — US & Canada
Specify standalone VIG (COG U-factor 0.081 Btu/h·ft²·°F, R-12.3) or Hybrid VIG (0.039, R-25.6) for new construction, curtain wall, storefront, and window replacement. IECC 2021 climate zone compliance checked instantly.
Passive House, LEED & ENERGY STAR
Hybrid VIG achieves whole-window U-factors below 0.14 Btu/h·ft²·°F with a thermal-break aluminium frame — meeting PHI Passive House and ENERGY STAR v7 Northern zone requirements in a 26 mm profile.
Configuration Type
A single vacuum insulating glass unit — two lites bonded with a warm-edge pillar grid and glass frit edge seal. Profile from 6.3 mm. Best for windows, skylights, and curtain wall.
Dimensions & Quantity
Enter the glass size (not the rough opening). Minimum 12" × 12". Maximum 60" × 98".
Glass Substrate
Low-E Coating
Manufacturer
Shape
Frame & Installation
Frame Material
Leave blank to use the typical value for the selected frame material.
Spacer Type
Installation Type
Project Context
IECC Climate Zone
IECC 2021 whole-window U-factor maximums are applied automatically for the selected zone.
VIG uses a fixed hard vacuum — altitude-neutral. No differential pressure concern unlike gas-filled IGUs.
Primary Orientation
Shading Conditions
Code / Certification Target
Additional Notes
Estimate
Enter dimensions above to see an instant estimate.
Performance Datasheet
Center-of-Glass (COG)
U-Factor (NFRC Winter, COG)
0.081 Btu/h·ft²·°F
Base (uncoated): 0.081 Btu/h·ft²·°F = 0.46 W/m²·K · vs. Triple Pane IGU (COG): 0.10 – 0.14 Btu/h·ft²·°F
Center-of-Glass R-Value
R-12.3
vs. Triple Pane IGU (COG): R-7 to R-10
Visible Light Transmittance (VLT)
~81%
vs. Triple Pane IGU (COG): ~70–75%
Solar Heat Gain Coefficient (SHGC)
~0.76
vs. Triple Pane IGU (COG): 0.35–0.55 (uncoated) / 0.20–0.35 (Low-E)
Acoustic Performance (STC)
STC 35–39
vs. Triple Pane IGU: STC 32–36
Overall Profile Thickness
~8.3 mm (1/3")
vs. Triple Pane IGU: ~36 mm (1-7/16")
COG values per NFRC 100 simulation. Actual performance varies with coating lot, substrate thickness, and installation conditions.
Mathematical Analysis — Full Derivation (PDF)Enter width, height, and quantity above to see whole-window U-factor and code compliance results.
Climate & Site Context
Heating Degree Days
5,400–7,200
Zone 5 typical
Cooling Degree Days
250–500
Zone 5 typical
Condensation Resistance (est. CR)
CR 87Excellent — low condensation risk in most climates and occupancy types.
Solar Load Rating
ModerateBalanced solar exposure — consider SHGC ≤ 0.40 for mixed climates.
HDD/CDD values are IECC zone-typical averages. Actual site data may vary.
All performance data is based on simulation models and published manufacturer data. THERMGLASS makes no warranty of fitness for a particular purpose. Consult a licensed engineer for project-specific specifications.