International Door, Inc.
8001 Ronda Drive
Canton, MI  48187
(800) 231-9521
Website:  www.international-door.com
Sales Dept. E-Mail:  sales@international-door.com
Engineering Dept. E-Mail:  engineering@international-door.com 

Section 08371- Canopy/Hangar Industrial Doors

Part 1- General

1.1	RELATED DOCUMENTS

A.	Drawings and general provisions of the Contract including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2	SUMMARY

A.	This Section includes canopy/tilt-up industrial doors as indicated and scheduled on drawings and specified herein.

1.3	SUBMITTALS

A.	Product data, roughing-in diagrams and installation for each type and size of industrial door.  Include manufacturer’s operating instructions and maintenance data.

B.	Shop drawings detailing fabrication and erection of each door indicated.  Include plans, elevations, sections and details of fabrications and their connections.  Show anchorage and accessory items.  Provide templates for anchors and bolts specified for installation under other Sections.

1.	Include location and installation requirements for electric operators.
      
C.	Wiring diagrams detailing power and control wiring.  Differentiate between manufacturer-installed and field-installed wiring.  Include motor size and voltage.

1.4	QUALITY ASSURANCE

A.	Product Description:  Provide each canopy/tilt-up industrial door as a complete unit produced by a single manufacturer, including frames, sections, brackets, guides, tracks, counterbalance mechanisms, hardware, operators and installation accessories.

B.	Installer Qualifications: Engage an experienced Installer with a minimum 5 years experience and who is an authorized representative of the manufacturer.

C.	Deflection: Design and reinforce canopy/tilt-up industrial doors not to deflect more than 1/120 under a minimum 20 psf (950PA)wind-loading pressure.

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D.	Welding Standards: Comply with applicable provisions of AWS D1.3 “Structural Welding Code-Sheet Steel”.

Part 2- Products

2.1	ACCEPTABLE MANUFACTURERS

A.	Manufacturer: Subject to compliance with requirements, provide products by one of the following:

1.	International Door, Inc.

2.2	FERROUS MATERIALS

A.	Materials:  For metal fabrications exposed to view in the completed Work.  Provide materials selected for their surface flatness, smoothness and freedom from surface blemishes.  Do not use materials with exposed pitting, seam marks, roller marks, rolled trade names or roughness. 

1.	Steel Plates, Shapes and Bars: ASTM A 36 (ASTM A 36M).
2.	Gray-Iron Castings: ASTM A 48, Class 30
3.	Uncoated Steel Sheet: Commercial quality, product type(method of manufacture) as follows:

a.	Hot Rolled Steel Sheet: ASTM A 569 (ASTM A 569M).

i.	Steel Sheet Thickness: 14 gage (1.9 mm).
ii.	Face: Flat.

2.3	DOOR PANEL CONSTRUTION

A.	Design Criteria: Canopy/tilt-up industrial door shall be constructed as indicated and arranged on drawings.

B.	Face:  Fabricate face of panels from a single sheet of 14 gage (1.9 mm) hot-rolled steel welded to panel frame at 9 inches(225 mm) o.c.

C.	Frame: Fabricate frame of panels of standard structural steel sections of ample size and strength for loads and stress imposed under the specified conditions.  Frames shall be of welded construction and al joints shall develop full strength of framing members.

D.	Insulation: Insulate inner core of panel sections with manufacturer’s standard 2 inch (50 mm) batt type fiberglass insulation providing a U-value of 0.12 or less

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E.	Pedestrian Doors(Optional):  Provide pedestrian doors where indicated, complete with glazing, operating hardware and mortise lock.  Construct pass doors and frames of same materials and design as specified in another Division 8 Section.  Include hardware meeting requirements specified in Division 8 Section – “Door Hardware”. 

2.4	DOOR GUIDE CONSTRUCTION

A.  Guides: Fabricate canopy/tilt-up industrial door guides of ¼ inch (6 mm) thick  
      steel angles and 3/16 inch (5 mm) thick steel plates with sufficient depth and     
      strength to retain canopy/tilt-up industrial door loading.

B.	Counterweight: Provide steel plate sectional counterweight to properly balance canopy/tilt-up industrial door panels for easy operation.  Counterweight shall be contained in a steel plate box suspended on cables attached to canopy/tilt-up industrial door panels operating over cast iron sheaves.  Counterweight box shall be guided throughout the full height of travel by a counterweight enclosed (tower) with internal guides.  Counterweight guide tower material shall be a minimum 3/16 (5 mm) thick.

1.	Counterweight tower shall be covered with 14 gauge (1.9 mm) steel plate to a minimum height of 8 feet.

2.5	HARDWARE

A.  General:  Provide heavy duty type hardware with fasteners as required for a 
      complete installation.

B.	 Guide Rollers:  Provide anti-friction bearing guide rollers.  Guide rollers shall engage steel door guides and guide the panel up and down.  Guide rollers shall be of sufficient size to transmit the windload from door panel to steel door guides.

C.	Cable System:  Provide all necessary wire rope, sheave assemblies and fittings to make system operable.  Wire ropes shall be designed to sustain dead load of panels plus 25% impace allowance with minimum safety factor of 5.  Ends of wire ropes at each panel shall be equipped turnbuckles or other means for independent adjustment.  Traction sheaves shall be 12 inch (300 mm) diameter and idler sheaves shall be 8 inch (200 mm) diameter minimum.  All idler sheaves shall be provided with sealed roller bearings.  All cables supporting the doors and counterweight shall be 6x37 IWRC type.

D.	Weather Seals:  Provide continuous rubber, neoprene or flexible vinyl adjustable weatherstrip gasket at tops and compressible astragal on bottoms of each industrial door.

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2.6	PRIME PAINTING

A.	General:  Shop – Clean and prime ferrous metal surfaces, exposed and  
  unexposed except tightly joined and lubricated surfaces, with door  
  manufacturer’s standard rust-inhibitive primer.  Use primer that is compatible 
  with finish painting.

2.7  ELECTRIC DOOR OPERATORS

B.	General:  Furnish electric door operator assembly  of size and capacity 
      recommended and provided by door manufacturer complete with electric motor  
      and factory-prewired motor controls, gear-reduction unit, solenoid-operated  
      brake, clutch, remote-control stations and control devices.

B.	Provide hand-operated disconnect or mechanism for automatically engaging sprocket-chain operator and releasing brake for emergency manual operation.  Include interlock device to automatically prevent motor from operating when emergency sprocket is engaged.

C.	Design operator so that motor may be removed without disturbing limit-switch adjustment and without affecting emergency auxiliary operator.

D.	Operating Unit:  Canopy/tilt-up industrial doors shall be suspended on wire ropes reeved over traction sheaves to counterweights.  Traction sheaves shall be driven by motor operator with auxiliary hand crank operator.  Electric power operator shall be complete with electric gear motor, magnetic brake, brackets, pushbutton control, limit switches, magnetic reversing starter and other accessories required.  Power operator shall be removed without disturbing limit switch setting and without affecting the emergency auxiliary operators.  Provisions shall be made for immediate emergency manual operation of door in event of electrical failure.  Emergency operating mechanism shall be arranged such that it can be placed in and out of operation from floor and it s use shall not affect timing of limit switches.

E.	Electric Motors:  Provide high starting torque, reversible, constant-duty, Class A-insulated electric motors with overload protection, sized to move door in either direction from any position, at not less than 2/3 foot per second (0.2 m/s) or more than 1 foot per second (0.3 m/s).

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1.	Coordinate wiring requirements and current characteristics of motors with building electrical system.

F.	Remote Control Station:  Provide momentary contact, three button control station with push button controls labeled “Open”, “Close” and “Stop”.

1.	Provide interior units, full geared, surface mounted, heavy duty with general purpose NEMA Type 12 enclosure.

G.	Automatic Reversing Control:  Furnish each door with automatic safety switch, extending full width of door bottom, and located within neoprene or rubber astragal mounted to bottom door rail.  Contact with switch will immediately reverse downward door travel.  Furnish manufacturer’s standard take-up reel or self-coiling cable.

1.	Provide electrically actuated automatic bottom bar.

Part 3- Execution
  
3.1	EXAMINATION

       A.  Examine flooring, structural support and opening for compliance with 
             requirements for installation tolerances and other conditions affecting  
             performance.

C.	Do not proceed with installation until unsatisfactory conditions have been corrected.

1.	Procedure by the Installer of the Work indicates acceptance of both the substrate and conditions under which Work is to be performed.

2.  No Change Order shall be issued by the Architect to correct any  
     unsatisfactory conditions reported after procedure of the Work by the 
     Installer.

3.2	INSTALLATION

     A.  General: Install door, track and operating equipment complete with necessary 
     hardware, jamb and head mold stops, anchors, inserts, hangers and equipment   
     supports according to shop drawings, manufacturer’s instructions and as  
     specified.

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B.	After completing installation, including work by other trades, lubricate, test and adjust doors to operate easily, free from warp, twist or distortion and fitting weathertight for entire perimeter.

3.3	DEMONSTRATION

A.  Startup Service:  Provide the services of a factory-authorized service 
      representative to provide start-up service and to demonstrate and train Owner’s 
      representative.

1.	Test and adjust controls and safeties.  Replace damaged or malfunctioning controls and equipment.

2.	Train Owner’s representative on procedures and schedules related to startup and shutdown, troubleshooting, servicing and preventative maintenance.

3.	Review data in the “Operating and Maintenance Manual”.

END OF SECTION 08371