This insulated overhead steel door incorporates 3-inch-thick polyurethane foam in a three-layer steel “sandwich” format for an R-value of 22. Each section has a continuous closed-cell foam tape section joint seal and a 4.75-inch EPDM rubber astragal for optimum weather resistance in applications subject to extreme heat and cold. Doors include 14-gauge hinges, commercial 10-ball steel rollers, and 10,000-cycle torsion springs. Widths up to 30 feet, 2 inches are available, with triple-pane insulated windows offered for select sizes.
Clopay Building Products
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