Independent steel, insulated, wood, and custom garage door and opener researchExplore the installer directory
Garage Door System GuideFind a Local Pro

Brand review

Hormann

Hormann LLC manufactures insulated steel residential garage doors. The company publishes section thickness, double steel construction, insulation core type, R-value, and U-factor for models such as the Therma Tech 3500 and Clima Elite 5800.

Hormann builds insulated sandwich steel doors for homes in the United States. Its residential range spans polystyrene-core traditional doors and polyurethane-core carriage house styles. Hormann documents thermal ratings and layered steel construction on each model page.

Therma Tech 3500 Polystyrene Core

Hormann describes the Therma Tech 3500 as a 2 inch thick panel with 3-layer steel front and back construction and an insulating polystyrene core. The manufacturer lists an R-10.4 thermal rating and a U-0.21 value for the polystyrene build.

Hormann backs the door with a limited lifetime warranty, with 3 year hardware and 3 year spring coverage.

Clima Elite 5800 Polyurethane Core

Hormann positions the Clima Elite 5800 as a premium carriage house style door. The manufacturer lists a 2 inch door with 1.5 inch insulation and a proprietary urethane blend core between steel skins, with steel and composite wood overlays.

Hormann publishes an R-15.7 thermal rating and a U-factor of 0.21 for the door. It backs the door with a limited lifetime warranty and 5 year hardware coverage.