GENERAL
Alpine Overhead Doors, Inc., Insulated rolling service doors are designed using computer generated technology and are fabricated according to your specific requirements. The door curtain consists of interlocking flat slats, foamed-in-place with CFC-free and HCFC-free polyurethane insulation. Endlocks are
attached to each alternate slat allowing the door to maintain proper alignment as it travels both up and down. If your door project requires you to meet specific windload criteria, we also incorporate windlocks to the ends of each the door curtain slats. Slats are roll-formed, galvanized steel and are prepared with a rustinhibitive prime coating that is either baked on or powder coated within

COUNTERBALANCE ASSEMBLY
The counterbalance assembly is designed with a helical torsion spring which is housed in a pipe barrel. The springs are computer designed to effectively counterbalance the door for a standard 20,000 life cycles of operation. High cycle springs can be designed to satisfy up to 400,000 life cycles. Slat material comes standard in 24 gauge. Optional gauges are 22, 20 and 18 gauge. The bottom bar is standard in prime steel. Optional finishes in galvanized, stainless or aluminum. Weather seals are provided on the bottom bar, the exterior guides and the interior of the hood. Optional weather seals can be provided for the interior guides and or the lintel.

APPLICATION AND USE
Alpine Insulated IMB-V5 Doors are used for Loading Dock’s, Warehouses, Shipping and Receiving Platforms, Healthcare Facilities, Distribution and Retail
Outlets, Medical and Educational Facilities.

GENERAL
Rolling service doors as manufactured by Alpine Overhead Doors, Inc. Opening preparation, miscellaneous or structural metal work, access doors, finish or field
painting, field electrical wiring, wire, conduit, fuses and disconnect switches are in the Scope of Work of other divisons or trades.

CURTAIN
Constructed of Interlocking, roll-formed 2 3/4” galvanized flat slats, 5/8” thick, a CFC-Free, Foamed-in-Place Polyurethane Insulated Slat that provides protection against air infiltration. G90 coating exterior, G60 coating interior, Structrual Quality Grade C, as per ASTM-A653/A653-M. Slat Options: stainless steel or aluminum. Finish options: phoshate, baked enamel or powder coated.

GALVANIZED ENDLOCKS/WINDLOCKS
Ductile Cast iron, hot-dipped galvanized endlocks/windlocks are riveted to the ends of the slats with 1/4” rivets. Option in brass material which prevents sparking. Furnish windlocks based on windload specifications.

BOTTOM BAR
Two roll-formed galvanized steel angles which are designed to reinforce the bottom of the curtain. Equiped with vinyl weatherstripping which extends into the guides. Galvanized steel as per ASTM-A653/A653-M.

GUIDES
Guides are designed using structural steel angles with a minimum thickness off 3/16”, minimum 1/14” slotted connections and removable bellmouth curtain stops which allow for curtain maintenance without removal of the guides. They are equipped with vinyl weather seals.

SPRING COUNTERBALANCE
To be housed in a steel pipe with a diameter and wall thickness to restrict maximum deflection to 0.03” per foot of door width. Springs are of the helical torsion type which are designed to include an overload factor of 25% for optimum ease of operation. The springs are grease packed and mounted on a cold rolled steel inner shaft. Spring tension is adjustable from the outside of the end bracket plate. Sealed ball bearings prevent wear on the pipe shaft. Life Cycle 17.5M thru 400M.

BRACKETS
Steel plate not less than 1/4” thick with ball bearings at rotating support points. When bolted to the wall the mounting angle it supports the counterbalance
assembly and forms an end enclosure. Option: Stop Lock Bearing which prevents the door from free falling in the event of a drive operation failure.
HOOD Hexagon (Option: Square or Round) Made from #22 gauge galvanized steel and formed to fit the contour of the end brackets. Optional material in stainless steel or aluminum. Equiped with a neoprene air baffle. Finish Options: phosphate, baked enamel or powder coated.

FASCIA GALVANIZED (OPTIONAL)
Useful where the area behind the hood is open. Especially applicable with pre-engineered buildings.

OPERATION
Available in push-up, hand chain, hand-crank, or motor operation. For other optional features see the motor operators section in this catalog.

LOCKING
Option: 1. Can be equiped with slide locks for latching and locking the door on the coil side of the bottom bar. Option: 2. Cylinder Locks. Option: 3. Electric
Interlocks are recommended for motorized doors.

FINISH
Slats are prepared with a minimum galvanizing of G-60 (interior) and G-90 (exterior). The hoods are galvanized and other exposed ferrous surfaces are either prime painted or powder coated. (188 Powder Coat colors to choose from.)

GALVANIZING (OPTION)
Applied to the guides, brackets, pipe shafts and gears in addition to Standard Specifications. Applied where conditions of extreme or unusual atmospheric contamination is present. As per ASTM-A123.

Contact us today to find out which Alpine® solution is right for you!