450U
Polyurethane Insulated 2” Commercial Sectional Door
Best Commercial Sectional Door Solution Based on Thermal Rating, Durability, and Maintenance
Hörmann’s Best commercial sectional door solutions based on thermal qualities, durability, and maintenance, is the 450U (2” thick, R-Value 18.4) polyurethane insulated model. The 450U doors are constructed using our environmentally friendly, proprietary blend polyurethane that is evenly injected between galvanized steel sheets via a continuous computer-controlled process. Hörmann’s proprietary blend polyurethane has unmatched density and strength as compared to competitive brands.
Our top-of-the-line galvanized steel sheets are treated with four layers of a strength and weather-resistant coating for a long-lasting surface finish. A triple-reinforced steel fold extends across each panel section for added stability. In addition, conduction-resistant panel thermal breaks along with foam / tape insulated joints reduce air infiltration and heat / AC loss.
Only available from Hörmann, our reinforced safety bottom brackets and red safety screws provide an added layer of built-in safety. Choose from four popular colors: white, brown, sandstone, or metallic silver (optional). For ultimate customization, our Galaxy Paint System offers custom colors to match any color under the stars.
| Feature | Rating |
|---|---|
| Thermal Rating |
|
| Durability |
|
| Low Maintenance |
|
| Characteristic | |
|---|---|
| Insulation value | R-18.4 |
| Steel thickness | 25 ga. |
| Section thickness | 2" |
| Design options | 2 panel styles + 3 window designs |
| Colors | 4 color finishes + custom colors |
| Warranty | Door: 10yr - Hardware: 1yr - Springs: 1yr |
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Panel Construction
The industry leader in innovative door safety, insulation, and strength
Increased thermal efficiency is achieved by our conduction-resistant thermal break.
Our joints are sealed with insulating foam and joint tape to reduce air flow.
Reinforced safety bottom brackets and red safety screws create a double layer of built-in safety.
A triple-reinforced steel fold extends across the entire section for solid hardware mounting, and an internal steel layer creates additional stability.
Perfected over generations, our precisely engineered polyurethane outperforms competitors in strength, energy efficiency, and density every time.
Our top-of-the-line galvanized steel is treated with 4 layers of a special strength and weather resistant finish.
Hörmann Innovations
Door Design Options
Choose your panel, color and windows