Thermiser Max® - Low U | Insulated Rolling Door

Insulated Doors

Model Number: ESD40

Meet the next generation insulated rolling door.

The Thermiser Max® - Low U Door is a ground-breaking innovation in thermal performance. Its impressive engineering and dependable U-factor rating deliver exceptional energy efficiency and climate control.

This insulated rolling door is designed with state-of-the-art materials, including mineral wool insulation and a CPVC backer, offering a U-factor rating of 0.532* for the full assembly. Rigorous third-party U-factor testing ensures that the Thermiser Max - Low U Door carries the industry's most accurate measurement of thermal performance.

Unshakable performance.

The Thermiser Max - Low U Door is constructed with an insulated curtain, patented perimeter seal, and thermally-broken guide, minimizing the speed of heat transferred through the door assembly. Designed for exterior applications where climate control is needed the most, the Thermiser Max - Low U insulated steel door holds its own.

Along with its standout thermal performance, our Thermiser Max - Low U Door has another perk. The door carries a Sound Transmission Rating (STC) of 27* for the full assembly when configured with 18GA steel front slats, offering more control over interior and exterior noise levels. Doors meet ASHRAE® 90.12, IECC® 2021 and California's Title 24 air infiltration requirements with an independently tested value of less than 0.3 CFM/ft2. The Thermiser Max – Low U Door can also be configured to meet a maximum operational wind load of 20 PSF.

*Options such as windows, pass doors, etc. may impact U-factor. Contact the factory for details on specific configurations.
**Contact the factory for details. All configurations are evaluated per ASTM E90, based on testing a complete operable assembly.

Dare to compare. Add up your savings!

Carrying the lowest tested U-factor among insulated rolling steel doors in the market, Thermiser Max – Low U door is engineered to reduce energy loss and electricity usage — shrinking your utility costs.

 

Usage

Materials & Finishes

Available Operators

Codes & Listings
  • ISO 9001:2008
  • Buy America Compliance
  • LEED® Compliance
See Codes and Listings page for detailed information.