Commercial Garage Doors : Rolling Steel Doors : Insulated Service Fire Door

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The Cookson Insulated Fire Door is used when an opening in a fire wall requires a door that will reduce energy costs as well as serve as a normal fire door. Approved by international testing laboratory Warnock Hersey, Cookson insulated fire doors have a 4 hour, 3 hour, 1 ½ hour and ¾ hour rating and can be mounted on concrete, masonry, structural steel and structural steel and gypsum board walls. Lifetime warranted Whisper Governor controls automatic closing speed of door to a range of 6” to” 24” per second. Oil tempered torsion springs designed for 50,000 life cycles. Structural angle guides and bottom bar make door less vulnerable to damage that could prevent the door from fully closing. Exclusive interlocking slats provide energy efficiency and a finished appearance inside and out. Mineral Wool fire resistent insulation provides a R value of 4, Flame Spread Index of 10 and a STC rating of 27.  Heavy duty brush weather-strip on the guides and lintel reduce air and dust infiltration. The bottom of the door is sealed by a flexible, solid Pyroglass astragal. Approved sizes Labeled doors up to 163 square feet not exceeding 13’6” wide or 12’ high Oversize labels furnished on larger doors not exceeding 24’ 0” or 16’ 4” high. Available for 4 hour, 3 hour, 1-1/2 hour and 3/4 hour ratings. Approved for all wall types (concrete, masonry, structural steel, structural steel with gypsum board). FinalCote Finish Standard. Available in 180 standard ColorCote Colors (Optional).