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Hörmann 440U & 450U Commercial Sectional Doors

Hörmann 440U & 450U Commercial Sectional Doors

Hörmann 440U & 450U are available in two section thicknesses; the 440U doors at 1½” with an R-Value of 15.7 and 450U at 2” with an R-Value of 18.4. Both door series offers two sided steel sections and 100% CFC-free polyurethane foam core insulation for maximum protection against the elements. Manufactured to the highest quality standards in the industry, all 440U and 450U doors come with proven tongue and groove section joints.

  • Construction

    Precisely designed thermally broken tongue and groove section joints reduce air infiltration and creates weather-tight seal.

    Environmentally friendly polyurethane foam core is enclosed by 25 gauge galvanized steel on the inside and outside. This provides maximum insulation for substantial energy savings and ultimate panel stability for luxuriously quiet door operation.

    Galvanized finished painted steel provides superior corrosion resistance for years of trouble-free performance.

    The bottom weather seal keeps out wind, rain, debris and other elements for added energy savings.

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