Non-Invasive Insulating Glass Retrofit (IGR) System
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Upgrade Operable and Non-Operable Windows and Curtain Walls from the Exterior or Interior Without Replacement
Patented Demolition-Free Retrofits for Fixed & Operable Glazing
Compact & Lightweight
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1” thickness with a 1.5” sightline
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Creates a 0.63” hermetically-sealed insulating air cavity
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As low as 2 lbs/sq. ft. added weight
Highly Versatile
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Transforms most window and curtain wall systems into upgradable, future-proof assemblies
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Compatible with all glass options, including the latest energy-saving, sound-insulating, dynamic-tinting, and smart glass varieties
Transform Single to Double-Pane, Double to Triple-Pane
2-10x added insulation (based on glass selection)
Up to 40% energy savings
65%+ outside noise reduction
Original Window
Retrofitted Window
Higher interior window temperature during winter at the University of Minnesota (interior IGR retrofit on fixed and operable windows) = lower energy loss
IGR Performance
Existing | + IGR | + IGR-IG | + IGR-VIG | |
|---|---|---|---|---|
Glass | Single-Pane, Clear | Single-Pane, Low-E | Double-Pane, Insulating Glass, Low-E, Argon | Double-Pane, Insulating Glass, Low-E, Vacuum |
U-Value (Total) | 1.04 Btu/hr ft2 F, 5.92 W/m2 K | 0.50 Btu/hr ft2 F, 2.85 W/m2 K | 0.29 Btu/hr ft2 F, 1.71 W/m2 K | 0.32 Btu/hr ft2 F, 1.78 W/m2 K |
R-Value (CoG) | 1 | 3 | 6 | 11 |
SHGC | 0.73 | 0.41 | 0.19 | 0.31 |
VLT | 0.76 | 0.64 | 0.3 | 0.48 |
Quick & Easy Installation: Exterior or Interior
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Upcycles the original glazing into energy efficient, sustainable multi-pane glazing without having to drill or alter anything.
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Up to 70% fewer materials used and faster installation than replacement.
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Minimum to no disruption of normal building operations and occupants.
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Suitable for most existing buildings and systems: mechanically or structurally glazed, fixed or operable, unitized or stick-built.
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In many cases, can be installed using the existing facade access systems, window washing platforms, or building maintenance units (BMUs).
Meets or Exceeds Industry Standards for New and Secondary Windows
Certified by the Attachments Energy Rating Council (AERC)
Structural Integrity
Air/Water Leakage
High Wind Load Resistance
Sound Dampening
Thermal Insulation
Condensation Resistance