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VIG Glass Doors for Commercial Refrigeration
Zero door fogging. No heated wires. THERMGLASS VIG eliminates the thermal bridging that drives energy loss in commercial display cases.
The Cold Chain Problem
Glass doors are the single largest source of thermal loss in cold storage
Conventional double-pane IGU doors in walk-in coolers, freezers, and refrigerated display cases operate at or below the dew point of ambient store air — driving continuous condensation, anti-sweat heater energy draw, and compressor overload. THERMGLASS Warm-Edge VIG eliminates that failure mode entirely.
With a center-of-glass U-factor as low as 0.025 Btu/h·ft²·°F and Condensation Resistance ratings of 77–94, THERMGLASS cold storage glass doors maintain surface temperatures above the dew point without resistive heating — cutting energy consumption 71–91% versus a reference double-pane IGU. NSF/ANSI 7 compliant for commercial refrigerators and freezers.
Applications
Where THERMGLASS Performs
Walk-In Coolers & Freezers
Positive-temperature coolers (+35°F to +38°F) and sub-zero freezers (-10°F to +10°F). THERMGLASS Standalone VIG handles cooler doors; Hybrid VIG is specified for freezer applications requiring CR 85+ and whole-unit U-factors below 0.10 Btu/h·ft²·°F.
Refrigerated Display Cases
Glass-door reach-in and open-front display cases for supermarkets, convenience stores, and food service. Eliminates anti-sweat heater wiring, reduces compressor cycling, and improves product visibility with fog-free glass at all ambient humidity levels.
Glass Door Freezer Cases
Low-temperature glass door freezer cases (-10°F to -20°F) for ice cream, frozen meals, and frozen beverages. Hybrid VIG with ITO-coated anti-fog heated glass option for extreme dew point differentials in high-humidity store environments.
Blast Freeze Chambers & Cold Chain
Extreme low-temperature blast freeze chambers (-40°F and below) and refrigerated warehouse vision panels. Maximum R-value Hybrid VIG with heated gasket systems. NSF/ANSI 7 compliant. Suitable for pharmaceutical cold chain, food processing, and industrial cold storage.
Key Benefits
71–91% Energy Savings vs. Reference IGU
Conductive heat gain through the glass door is the dominant energy load in refrigerated display cases. THERMGLASS VIG reduces that load by 71–91% compared to a standard double-pane IGU, cutting compressor runtime and lowering utility costs across the entire cold chain.
Zero Condensation — No Heated Wires Required
Condensation Resistance ratings of 77–94 keep glass surface temperatures above the ambient dew point at all operating conditions. Eliminates anti-sweat heater wiring, reduces electrical load, and removes the maintenance liability of failed heater elements in door frames.
NSF/ANSI 7 Compliant
THERMGLASS cold storage glass meets NSF/ANSI 7 requirements for commercial refrigerators and freezers — the standard referenced by health departments and food service codes for display case glazing in supermarkets, restaurants, and food processing facilities.
Slim Profiles — Retrofit-Ready
Standalone VIG profiles from 6.3mm fit existing door frame rebates designed for standard double-pane IGU. Retrofit walk-in cooler and display case doors without frame replacement — a direct drop-in upgrade that delivers vacuum-grade thermal performance.
Cold Storage Configurator
Spec your cooler or freezer glazing
Select your application type, temperature zone, and frame system — get a recommended THERMGLASS makeup, U-factor, condensation resistance rating, and ASHRAE 90.1 compliance check.
Specify THERMGLASS for your cold storage project
Use the Cold Storage Configurator to select your application type, temperature zone, and frame system — get a recommended glass makeup, U-factor, condensation resistance rating, and NSF/ANSI 7 compliance check instantly.