Mark IV® Vertical Lift Manually Operated Door

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A favorite of industry experts, Jamison’s Vertical Sliders are extremely versatile with design configurations for virtually any application.

Door Features

Design Excellence: These doors are equipped with a unique “down-and-in” joggle track system that assumes friction-free operation until the last few inches of travel in the closing cycle. Additionally, our vertical and overhead doors employ an automatic locking top latch and counter-balance system for secure, finger-tip operation.

Easy Installation: With track and angles preassembled on our casings, installation is quick and easy.
Flexibility: Closer positioning of doorways also provides critical floor and wall space savings.
Versatile: Designed to handle up to a 100F Delta T.

Design Excellence: These doors are equipped with a unique “down-and-in” joggle track system that assumes friction-free operation until the last few inches of travel in the closing cycle. Additionally, our vertical and overhead doors employ an automatic locking top latch and counter-balance system for secure, finger-tip operation.
Easy Installation: With track and angles preassembled on our casings, installation is quick and easy.
Flexibility: Closer positioning of doorways also provides critical floor and wall space savings.
Versatile: Designed to handle up to a 100F Delta T.

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About Cold Storage Doors

Service and Support

Door is filled with 4” Jamison foamed-in-place non-CFC polyurethane insulation, with a minimum R value of 32 at 20F for 4 inch doors per ASTM C-518
Extruded aluminum structure provides superior strength.
Standard panels are white, stucco-embossed #26 gauge galvanized steel, front and back.
Adjustable gaskets at sides and head of frame are polyester reinforced.
Hardware and track have protective coating to prevent corrosion.
Available as power-operated or manually-operated.
5-year limited warranty