083613 - SECTIONAL DOORS.DOC

UNIT TRAINING EQUIPMENT SITE ADD/ALTER

Copyright 2010 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

SECTION 083613 - SECTIONAL DOORS

Revise this Section by deleting and inserting text to meet Project-specific requirements.

This Section uses the term "Architect." Change this term as necessary to match that used to identify the design professional as defined in the General and Supplementary Conditions.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes electrically operated sectional doors.

B. Related Sections:

1. Section 055000 "Metal Fabrications" for miscellaneous steel supports.

1.3 PERFORMANCE REQUIREMENTS

Revise first paragraph below if installation of temporary reinforcement ("active" preparation) is acceptable for high-wind events. See "Wind Loads" Article in the Evaluations.

A. General Performance: Sectional doors shall meet performance requirements specified without failure due to defective manufacture, fabrication, installation, or other defects in construction and without requiring temporary installation of reinforcing components.

Retain first paragraph below if Contractor is required to assume responsibility for design.

B. Delegated Design: Design sectional doors, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated.

Retain first paragraph below for exterior doors.

C. Structural Performance: Exterior sectional doors shall withstand the effects of gravity loads, and the following loads and stresses within limits and under conditions indicated according to ASCE/SEI 7.

Retain subparagraphs below for design loads and load combinations. Values in subparagraphs are examples only.

Indicate wind loads, as determined by Project's structural engineer, on Drawings or in first subparagraph below. DASMA 102 no longer includes a minimum wind-pressure load value. Verify requirements of authorities having jurisdiction and consult manufacturer for specific wind-load applications. See Evaluations.

1. Wind Loads: Uniform pressure (velocity pressure) of 20 lbf/sq. ft. (960 Pa), acting inward and outward.

a. Basic Wind Speed: 90 mph (40 m/s).

b. Importance Factor: 1.0

c. Exposure Category: B.

Revise subparagraph below to suit Project. Deflection limit in horizontal position (open) is a DASMA 102 requirement; consult manufacturer for unusual deflection requirements.

2. Deflection Limits: Design sectional doors to withstand design wind loads without evidencing permanent deformation or disengagement of door components. Deflection of door in horizontal position (open) shall not exceed 1/120 of the door width.

Retain first paragraph below if required. According to DASMA 105, air-infiltration testing is based on ASTM E 283, but is performed at wind velocities of 15 and 25 mph (24.1 and 40.2 km/h) across the specimen, not performed at specified pressure differences as required by ASTM E 283. Manufacturers list air infiltration at these wind speeds for some doors. A 25-mph (40.2-km/h) wind velocity is equivalent to a pressure difference of 1.57 lbf/sq. ft. (75 Pa). Verify availability of tested assemblies with manufacturer.

D. Air Infiltration: Maximum rate not more than indicated when tested according to ASTM E 283.

1. Air Infiltration: Maximum rate of 0.08 cfm/sq. ft. (0.406 L/s per sq. m) at 15 and 25 mph (24.1 and 40.2 km/h).

E. Seismic Performance: Sectional doors shall withstand the effects of earthquake motions determined according to ASCE/SEI 7.

Retain first subparagraph below to define the term "withstand" as it applies to this Project. Definition varies with type of building and occupancy and is critical to valid certification.

1. The term "withstand" means "the unit will remain in place without separation of any parts from the device when subjected to the seismic forces specified."

Retain subparagraph below for projects requiring seismic design. The Component Importance Factor is 1.5 for life-safety components required to function after an earthquake. For other components, the Component Importance Factor is 1.0 unless the structure is in Seismic Use Group III and the component is necessary for continued operation of the facility or if failure of the component could impair continued operation of the facility, in which case it is 1.5.

2. Seismic Component Importance Factor: 1.0.

Retain first paragraph below if required for Project. The IBC establishes criteria for buildings in hurricane-prone locations according to ASTM E 1886 and ASTM E 1996, and authorities having jurisdiction may require testing for unglazed as well as glazed door assemblies. DASMA 115 tests the entire door assembly regardless of glazing. Verify requirements of authorities having jurisdiction. See Evaluations.

Retain first paragraph below with "Seismic Qualification Certificates" Paragraph in "Informational Submittals" Article for projects requiring seismic design. Model building codes and ASCE/SEI 7 establish criteria for buildings subject to earthquake motions. Verify requirements of authorities having jurisdiction.

F. Operation Cycles: Provide sectional door components and operators capable of operating for not less than number of cycles indicated for each door. One operation cycle is complete when a door is opened from the closed position to the fully open position and returned to the closed position.

1.4 ACTION SUBMITTALS

A. Product Data: For each type and size of sectional door and accessory. Include the following:

1. Construction details, material descriptions, dimensions of individual components, profile door sections, and finishes.

2. Rated capacities, operating characteristics, electrical characteristics, and furnished accessories.

B. Shop Drawings: For each installation and for special components not dimensioned or detailed in manufacturer's product data. Include plans, elevations, sections, details, and attachments to other work.

1. Detail equipment assemblies and indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of each field connection.

Retain subparagraph below if equipment includes wiring.

2. Wiring Diagrams: For power, signal, and control wiring.

C. Samples for Initial Selection: Manufacturer's finish charts showing full range of colors and textures available for units with factory-applied finishes.

1. Include similar Samples of accessories involving color selection.

Delete "Samples for Initial Selection" Paragraph above if colors and other characteristics are preselected and specified or scheduled. Retain first paragraph below with or without above.

D. Samples for Verification: For each type of exposed finish required, prepared on Samples of size indicated below:

Revise subparagraphs below to suit Project; delete items not required.

1. Flat Door Sections: 6 inches (150 mm) square.

Paragraph below is defined in Section 013300 "Submittal Procedures" as a "Delegated-Design Submittal." Retain if Work of this Section is required to withstand specific design loads and design responsibilities have been delegated to Contractor or if structural data are required as another way to verify compliance with performance requirements. Professional engineer qualifications are specified in Section 014000 "Quality Requirements."

E. Delegated-Design Submittal: For sectional doors indicated to comply with performance requirements and design criteria, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation.

Retain subparagraph below unless design calculations have already been made and do not need to be confirmed. Walls and jambs must be designed to support loads imposed by door.

1. Summary of forces and loads on walls and jambs.

1.5 INFORMATIONAL SUBMITTALS

Coordinate first paragraph below with qualification requirements in Section 014000 "Quality Requirements" and as supplemented in "Quality Assurance" Article.

A. Qualification Data: For qualified Installer.

B. Seismic Qualification Certificates: For sectional doors, accessories, and components, from manufacturer.

Retain first paragraph below if required by seismic criteria applicable to Project. Coordinate with Sections specifying seismic controls. See ASCE/SEI 7 for certification requirements for equipment and components.

C. Warranties: Sample of special warranties.

1.6 CLOSEOUT SUBMITTALS

A. Maintenance Data: For sectional doors to include in maintenance manuals.

1.7 QUALITY ASSURANCE

Retain first paragraph below if required for LEED. Before retaining, verify that manufacturers comply with requirement. Note that USGBC will allow credit for the full value of the door as certified wood if door manufacturer is listed for chain-of-custody certification and at least 70 percent of wood materials in the door are from certified forests; otherwise, it only allows credit for the value of certified wood materials used in making the door.

A. Installer Qualifications: Manufacturer's authorized representative who is trained and approved for both installation and maintenance of units required for this Project.

B. Source Limitations: Obtain sectional doors from single source from single manufacturer.

Retain subparagraph below or revise to suit Project.

1. Obtain operators and controls from sectional door manufacturer.

Retain first paragraph below for motorized operator.

C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

D. Standard for Sectional Doors: Fabricate sectional doors to comply with DASMA 102 unless otherwise indicated.

1.8 WARRANTY

When warranties are required, verify with Owner's counsel that special warranties stated in this article are not less than remedies available to Owner under prevailing local laws.

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace components of sectional doors that fail in materials or workmanship within specified warranty period.

1. Failures include, but are not limited to, the following:

a. Structural failures including, but not limited to, excessive deflection.

b. Faulty operation of hardware.

c. Deterioration of metals, metal finishes, and other materials beyond normal weathering and use; rust through.

d. Delamination of exterior or interior facing materials.

Verify available warranties and warranty periods with manufacturers listed in Part 2 article.

2. Warranty Period: Five years from date of Substantial Completion.

Retain paragraph below for factory-coated doors. Delete if doors are field finished.

B. Special Finish Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace components that show evidence of deterioration of factory-applied finishes within specified warranty period.

Verify available warranties and warranty periods with manufacturers listed in Part 2 article; coordinate with finishes retained.

1. Warranty Period: 10 years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 STEEL DOOR SECTIONS

Retain requirements in this article to suit Project. If retaining multiple requirements for different doors and to identify optional requirements for a single door, revise paragraphs below and insert text as needed in "Door Assembly" Article.

A. Exterior Section Faces and Frames: Fabricate from zinc-coated (galvanized), cold-rolled, commercial steel (CS) sheet, complying with ASTM A 653/A 653M, with indicated zinc coating and thickness.

Section heights vary among manufacturers and within each door to accommodate door heights in 3-inch (76 mm) or other increments.

1. Fabricate section faces from single sheets to provide sections not more than 24 inches (610 mm) high and of indicated thickness. Roll horizontal meeting edges to a continuous, interlocking, keyed, rabbeted, shiplap, or tongue-in-groove weathertight seal, with a reinforcing flange return.

Retain subparagraph below for insulated doors.

2. For insulated doors, provide sections with continuous thermal-break construction, separating the exterior and interior faces of door.

B. Section Ends and Intermediate Stiles: Enclose open ends of sections with channel end stiles formed from galvanized-steel sheet not less than 0.064-inch- (1.63-mm-) nominal coated thickness and welded to door section. Provide intermediate stiles formed from not less than 0.064-inch- (1.63-mm-) thick galvanized-steel sheet, cut to door section profile, and welded in place. Space stiles not more than 48 inches (1219 mm) apart.

Retain option in first paragraph below if requiring an astragal.

C. Reinforce bottom section with a continuous channel or angle conforming to bottom-section profile and allowing installation of astragal.

Retain option in first paragraph below for doors with vision lites; consult manufacturer.

D. Reinforce sections with continuous horizontal and diagonal reinforcement, as required to stiffen door and for wind loading. Provide galvanized-steel bars, struts, trusses, or strip steel, formed to depth and bolted or welded in place.

E. Provide reinforcement for hardware attachment.

Retain one or both of first two paragraphs below if required. Coordinate with selected manufacturer's options and with applicable type(s) of insulation and fabrication.

First paragraph below is for insulation either applied to door exterior face sheet and then covered by an interior facing material, or "backer panel," or bonded to interior facing material and secured to exterior face sheet with adhesive.

First paragraph below is for foamed-in-place insulation. Retain option, available from some manufacturers, if required.

F. Foamed-in-Place Thermal Insulation: Insulate interior of steel sections with door manufacturer's standard CFC-free polyurethane insulation, foamed in place to completely fill interior of section and pressure bonded to face sheets to prevent delamination under wind load, and with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, according to ASTM E 84. Enclose insulation completely within steel sections that incorporate the following interior facing material, with no exposed insulation:

Retain one of two subparagraphs below or revise to suit Project. Retain first subparagraph if insulated sections are preformed metal panels with foamed-in-place insulation.

1. Interior Facing Material: Zinc-coated (galvanized), cold-rolled, commercial steel (CS) sheet, complying with ASTM A 653/A 653M, with indicated thickness.

G. Fabricate sections so finished door assembly is rigid and aligned, with tight hairline joints and free of warp, twist, and deformation.

2.2 TRACKS, SUPPORTS, AND ACCESSORIES

Retain requirements in this article to suit Project. If retaining multiple requirements for different doors and to identify optional requirements for a single door, revise paragraphs below and insert text as needed in "Door Assembly" Article.

Retain required items in paragraphs below and insert other specialty items to suit Project.

A. Tracks: Manufacturer's standard, galvanized-steel track system of configuration indicated, sized for door size and weight, designed for lift type indicated and clearances shown on Drawings, and complying with ASTM A 653/A 653M for minimum G60 (Z180) zinc coating. Provide complete track assembly including brackets, bracing, and reinforcement for rigid support of ball-bearing roller guides for required door type and size. Slot vertical sections of track spaced 2 inches (51 mm) apart for door-drop safety device. Slope tracks at proper angle from vertical or design tracks to ensure tight closure at jambs when door unit is closed.

B. Track Reinforcement and Supports: Galvanized-steel track reinforcement and support members, complying with ASTM A 36/A 36M and ASTM A 123/A 123M. Secure, reinforce, and support tracks as required for door size and weight to provide strength and rigidity without sag, sway, and vibration during opening and closing of doors.

Retain first paragraph below for multiple doors in one opening without structural jambs to which track can be secured.

Revise first paragraph below if only a bottom weatherseal (astragal) is required.

C. Weatherseals: Replaceable, adjustable, continuous, compressible weather-stripping gaskets of flexible vinyl, rubber, or neoprene fitted to bottom and top of sectional door unless otherwise indicated.

Retain first paragraph below for windows other than full-vision sections.

Retain paragraph below for pass doors. Generally, pass doors may not be used as required fire exits, and their sills are not ADA-ABA compliant.

2.3 HARDWARE

Retain requirements in this article to suit Project. If retaining multiple requirements for different doors and to identify optional requirements for a single door, revise paragraphs below and insert text as needed in "Door Assembly" Article.

A. General: Provide heavy-duty, corrosion-resistant hardware, with hot-dip galvanized, stainless-steel, or other corrosion-resistant fasteners, to suit door type.

B. Hinges: Heavy-duty, galvanized-steel hinges of not less than 0.079-inch- (2.01-mm-) nominal coated thickness at each end stile and at each intermediate stile, according to manufacturer's written recommendations for door size. Attach hinges to door sections through stiles and rails with bolts and lock nuts or lock washers and nuts. Use rivets or self-tapping fasteners where access to nuts is not possible. Provide double-end hinges where required, for doors over 16 feet (4.88 m) wide unless otherwise recommended by door manufacturer.

C. Rollers: Heavy-duty rollers with steel ball-bearings in case-hardened steel races, mounted with varying projections to suit slope of track. Extend roller shaft through both hinges where double hinges are required. Provide 3-inch- (76-mm-) diameter roller tires for 3-inch- (76-mm-) wide track and 2-inch- (51-mm-) diameter roller tires for 2-inch- (51-mm-) wide track.

Retain paragraph below for push-up or emergency-operated doors.

D. Push/Pull Handles: For push-up or emergency-operated doors, provide galvanized-steel lifting handles on each side of door.

2.4 COUNTERBALANCE MECHANISM

Retain requirements in this article to suit Project. If retaining multiple requirements for different doors and to identify optional requirements for a single door, revise paragraphs below and insert text as needed in "Door Assembly" Article.

Retain one or both of first two paragraphs below for type(s) of counterbalance(s) required. Mechanism in first paragraph is most common type. Mechanism in second paragraph is often used for vertical lift doors with extremely high usage. Solid-steel torsion shaft is stronger than tube.

A. Torsion Spring: Counterbalance mechanism consisting of adjustable-tension torsion springs fabricated from steel-spring wire complying with ASTM A 229/A 229M, mounted on torsion shaft made of steel tube or solid steel. Provide springs designed for number of operation cycles indicated.

B. Weight Counterbalance: Counterbalance mechanism consisting of filled pipe weights that move vertically in a galvanized-steel weight pipe. Connect pipe weights with cable to weight-cable drums mounted on torsion shaft made of steel tube or solid steel.

Retain first paragraph below for all doors.

C. Cable Drums and Shaft for Doors: Cast-aluminum or gray-iron casting cable drums mounted on torsion shaft and grooved to receive door-lifting cables as door is raised. Mount counterbalance mechanism with manufacturer's standard ball-bearing brackets at each end of torsion shaft. Provide one additional midpoint bracket for shafts up to 16 feet (4.88 m) long and two additional brackets at one-third points to support shafts more than 16 feet (4.88 m) long unless closer spacing is recommended by door manufacturer.

D. Cables: Galvanized-steel lifting cables with cable safety factor of at least 5 to 1.

E. Cable Safety Device: Include a spring-loaded steel or spring-loaded bronze cam mounted to bottom door roller assembly on each side and designed to automatically stop door if either lifting cable breaks.

F. Bracket: Provide anchor support bracket as required to connect stationary end of spring to the wall and to level the shaft and prevent sag.

G. Provide a spring bumper at each horizontal track to cushion door at end of opening operation.

Insert other counterbalancing devices, such as springs for small doors, to suit Project.

2.5 ELECTRIC DOOR OPERATORS

Retain this article for electric door operators, including emergency manual operation. Coordinate with electrical engineer for interface of electric door operators with electrical systems.

Retain requirements in this article to suit Project. If retaining multiple requirements for different doors and to identify optional requirements for a single door, revise paragraphs below and insert text as needed in "Door Assembly" Article.

Retain option in first paragraph below if retaining "Operation Cycles" Paragraph in "Performance Requirements" Article.

A. General: Electric door operator assembly of size and capacity recommended and provided by door manufacturer for door and "operation cycles" requirement specified, with electric motor and factory-prewired motor controls, starter, gear-reduction unit, solenoid-operated brake, clutch, remote-control stations, control devices, integral gearing for locking door, and accessories required for proper operation.

1. Comply with NFPA 70.

2. Provide control equipment complying with NEMA ICS 1, NEMA ICS 2, and NEMA ICS 6; with NFPA 70, Class 2 control circuit, maximum 24-V ac or dc.

Durability requirement in first paragraph below is separate from "operation cycles," which apply to whole door system and are discussed in "Performance Requirements" Article.

B. Usage Classification: Electric operator and components capable of operating for not less than number of cycles per hour indicated for each door.

C. Door-Operator Type: Unit consisting of electric motor, gears, pulleys, belts, sprockets, chains, and controls needed to operate door and meet required usage classification.

Retain one or more of three subparagraphs below or revise to suit Project. Selection depends on size and weight of door, type of operation, and track configuration. Delete all subparagraphs if operator locations are shown on Drawings. See Evaluations.

Backroom and minimal headroom are required for mounting type in first subparagraph below.

1. Trolley: Trolley operator mounted to ceiling above and to rear of door in raised position and directly connected to door with drawbar.

Headroom is required for mounting type in first subparagraph below.

Default motor characteristics are specified in Section 110513 "Common Motor Requirements for Equipment."

D. Electric Motors: Comply with the following requirements unless otherwise indicated.

1. Electrical Characteristics:

Retain first or second option in first subparagraph below based on required motor size. Verify motor performance and availability with door manufacturer and coordinate electrical characteristics with electrical engineer. See Evaluations.

a. Phase: Single phase.

b. Volts: 120.

2. Motor Type and Controller: Reversible motor and controller (disconnect switch) for motor exposure indicated.

Speed in first subparagraph below is for standard-speed doors. Consult manufacturer and revise for higher-speed operation.

3. Motor Size: Minimum size as indicated. If not indicated, large enough to start, accelerate, and operate door in either direction from any position, at a speed not less than 8 in./sec. (203 mm/s) and not more than 12 in./sec. (305 mm/s), without exceeding nameplate ratings or service factor.

Revise first subparagraph below if required; coordinate requirements with electrical engineer. Verify which electrical devices, connections, and wiring, if any, are furnished or installed by other than sectional-door manufacturer. These devices are required to comply with requirements for electrical devices and connections specified elsewhere.

4. Operating Controls, Controllers (Disconnect Switches), Wiring Devices, and Wiring: Manufacturer's standard unless otherwise indicated.

5. Coordinate wiring requirements and electrical characteristics of motors and other electrical devices with building electrical system and each location where installed.

6. Use adjustable motor-mounting bases for belt-driven operators.

E. Limit Switches: Equip each motorized door with adjustable switches interlocked with motor controls and set to automatically stop door at fully opened and fully closed positions.

Retain first paragraph below if required or revise to suit Project.

F. Obstruction Detection Device: Equip motorized door with indicated external automatic safety sensor capable of protecting full width of door opening. Activation of device immediately stops and reverses downward door travel.

Retain one or both subparagraphs below to suit Project.

1. Photoelectric Sensor: Manufacturer's standard system designed to detect an obstruction in door opening without contact between door and obstruction.

Retain first subparagraph below if a self-monitoring system to detect failure of sensor device is required.

a. Self-Monitoring Type: Designed to interface with door operator control circuit to detect damage to or disconnection of sensor device. When self-monitoring feature is activated, door closes only with sustained pressure on close button.

2. Sensor Edge: Automatic safety sensor edge, located within astragal or weather stripping mounted to bottom bar. Contact with sensor activates device. Connect to control circuit using manufacturer's standard take-up reel or self-coiling cable.

Retain subparagraph below if a self-monitoring system to detect failure of sensor device is required.

a. Self-Monitoring Type: Four-wire configured device designed to interface with door-operator control circuit to detect damage to or disconnection of sensor edge.

Revise first paragraph below to suit Project. A sustained-pressure (in lieu of a momentary-contact) switch may be required for closing or opening cycles, or both. Verify acceptability with authorities having jurisdiction; revise requirements and door assembly article retained in Part 2 as needed.

G. Remote-Control Station: Momentary-contact, three-button control station with push-button controls labeled "Open," "Close," and "Stop."

Retain first subparagraph below for interior, clean, and dry installations. Revise to suit Project.

1. Interior units, full-guarded, surface-mounted, heavy-duty type, with general-purpose NEMA ICS 6, Type 1 enclosure.

Retain subparagraph below for exterior, dusty, wet, or humid installations. Revise to suit Project.

2. Exterior units, full-guarded, standard-duty, surface-mounted, weatherproof type, NEMA ICS 6, Type 4 enclosure, key operated.

H. Emergency Manual Operation: Equip each electrically powered door with capability for emergency manual operation. Design manual mechanism so required force for door operation does not exceed 25 lbf (111 N).

I. Emergency Operation Disconnect Device: Equip operator with hand-operated disconnect mechanism for automatically engaging manual operator and releasing brake for emergency manual operation while disconnecting motor without affecting timing of limit switch. Mount mechanism so it is accessible from floor level. Include interlock device to automatically prevent motor from operating when emergency operator is engaged.

J. Motor Removal: Design operator so motor may be removed without disturbing limit-switch adjustment and without affecting emergency manual operation.

Insert additional equipment for door operation if required; verify availability with manufacturer. Remaining paragraphs are examples only; retain or revise to suit Project.

Retain paragraph below if required as an auxiliary device; revise to suit Project.

2.6 DOOR ASSEMBLY

Copy this article and re-edit for each sectional-door unit. The article is intended as a guide if Project requires several units of varying sizes, characteristics, and capacities.

Insert number to complete drawing designation. Use these designations on Drawings to identify each sectional door.

Coordinate selection of door section and components with wind-load requirements. Verify availability of options retained with manufacturers selected.

A. Steel Sectional Door: Sectional door formed with hinged sections.

See Editing Instruction No. 1 in the Evaluations for cautions about naming manufacturers. Retain one of two subparagraphs and list of manufacturers below. See Section 016000 "Product Requirements."

1. Basis-of-Design Product: Subject to compliance with requirements, provide Haas Door; a Nofziger Company; Model CHT-732 or comparable product by one of the following:

Door materials and options are not common to all manufacturers. See Sectional Door Table in the Evaluations and consult manufacturers for available door materials and features; edit list below accordingly.

a. Clopay Building Products; a Griffon company.

b. Fimbel Architectural Door Specialties.

c. General American Door Company.

d. Overhead Door Corporation.

e. Raynor.

f. Wayne-Dalton Corp.

g. Or approved equal.

Retain one option in first paragraph below or revise to suit Project. First option is standard with some manufacturers; second option is more commonly used. Third and fourth options are used for high-cycle operation, corrosive environments, and severe or abusive use.

B. Operation Cycles: Not less than 20,000.

Retain first paragraph below if required. Verify available R-value below with manufacturer for type of door assembly and insulation specified. Values usually do not include translucent or windowed sections. Higher numbers are usually values for single door section; lower numbers are usually installed values of a test-specimen assembly or an entire door. See Evaluations.

C. Calculated R-Value: 16.

Retain first paragraph below for steel doors.

D. Steel Sections: Zinc-coated (galvanized) steel sheet with G60 (Z180) zinc coating.

Doors 3 inches (76 mm) thick are available from some manufacturers to accommodate thicker insulation.

1. Section Thickness: 1-3/4 inches (44 mm).

2. Exterior-Face, Steel Sheet Thickness: 0.028-inch- (0.71-mm-) nominal coated thickness.

Retain one of first two subparagraphs below. First subparagraph is for 0.064-inch- (1.63-mm-) thick steel sheet only.

a. Surface: To match existing.

Retain one of two options in first subparagraph below if insulated sections are required; coordinate with R-value if required.

3. Insulation: Foamed in place.

Retain one of two subparagraphs below or revise to suit Project. Retain first subparagraph if insulated sections are preformed metal panels with laminated insulation. Some manufacturers' standard interior facing materials are thinner than options below. Verify thickness availability with manufacturer. Coordinate with code requirements and authorities having jurisdiction for thermal barriers protecting foamed plastics.

4. Interior Facing Material: Zinc-coated (galvanized) steel sheet of 0.028-inch- (0.71-mm-) nominal coated thickness.

Retain first paragraph below for wood doors.

Retain first paragraph below or indicate track configuration on Drawings.

E. Track Configuration: Vertical-lift track.

Retain second option in first paragraph below if required for motor-operated doors.

F. Weatherseals: Fitted to bottom and top and around entire perimeter of door. Provide combination bottom weatherseal and sensor edge.

G. Windows: Approximately 24 by 7 inches (610 by 178 mm) (match existing) , with curved corners, and spaced apart the approximate distance as indicated on Drawings; in one row at height indicated on Drawings; installed with insulated glazing of the following type:

Retain one of four subparagraphs below or revise to suit Project; selections represent range of manufacturers' standard glazing for windows. Revise for other types and thicknesses of glazing; verify availability with manufacturers.

1. Insulating Glass: Manufacturer's standard, match existing tint.

Verify availability and size of windows in first paragraph below with manufacturer; revise to suit Project. Retain last option for use in thermally insulated doors.

Retain second option in first paragraph below for hazardous atmospheres.

H. Roller-Tire Material: Manufacturer's standard.

Retain one of first two options in first paragraph below. Retain last option for chain-hoist-operated doors or emergency chain-hoist operation.

I. Counterbalance Type: Torsion spring.

Retain one of first two paragraphs below.

J. Electric Door Operator:

Retain one option in first subparagraph below or revise to suit Project. Usage classification varies among manufacturers; it is a durability requirement separate from whole-door operation cycles. Consult manufacturer for specific recommendations.

1. Usage Classification: Standard duty, up to 60 cycles per hour.

2. Operator Type: Trolley.

Retain one option in first subparagraph below or revise to suit Project. Second option applies to locations such as car washes. Operating environment, including hazardous conditions, may require other motor types and enclosure modifications.

3. Motor Exposure: Interior, clean, and dry.

4. Emergency Manual Operation: Push-up type.

Third option in first subparagraph below may be limited to a width of 18 feet (5.5 m). Verify availability with manufacturer.

5. Obstruction-Detection Device: Automatic photoelectric sensor; self-monitoring type.

Retain first subparagraph below if retaining either second or third option in last subparagraph above.

a. Sensor Edge Bulb Color: Black.

6. Remote-Control Station: Interior.

K. Door Finish:

Retain one of first three subparagraphs below, which include advertised materials and finishes; available materials and finishes vary among manufacturers. If retaining more than one, indicate location of each on Drawings or by inserts.

First option in first subparagraph below is standard; verify availability of other aluminum finishes with manufacturer.

First subparagraph below is suitable for steel or aluminum.

1. Baked-Enamel or Powder-Coated Finish: Color to match existing.

Retain subparagraph below for steel sections.

2. Finish of Interior Facing Material: Color “White.”

2.7 GENERAL FINISH REQUIREMENTS

Retain this article for metal finishes. Delete if only wood doors are required.

A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for recommendations for applying and designating finishes.

B. Appearance of Finished Work: Noticeable variations in same piece are not acceptable. Variations in appearance of adjoining components are acceptable if they are within the range of approved Samples and are assembled or installed to minimize contrast.

2.8 STEEL AND GALVANIZED-STEEL FINISHES

Revise article title if galvanized surfaces are not finish painted.

Retain one or both paragraphs below. If retaining both for different doors and to identify optional requirements for a single door, revise below and insert text as needed in "Door Assembly" Article.

A. Baked-Enamel or Powder-Coat Finish: Manufacturer's standard baked-on finish consisting of prime coat and thermosetting topcoat. Comply with coating manufacturer's written instructions for cleaning, pretreatment, application, and minimum dry film thickness.

For exact finish, insert names of coating manufacturers and products.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements for substrate construction and other conditions affecting performance of the Work.

B. Examine locations of electrical connections.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Install sectional doors and operating equipment complete with necessary hardware, anchors, inserts, hangers, and equipment supports; according to manufacturer's written instructions and as specified.

B. Tracks:

1. Fasten vertical track assembly to opening jambs and framing, spaced not more than 24 inches (610 mm) apart.

2. Hang horizontal track assembly from structural overhead framing with angles or channel hangers attached to framing by welding or bolting, or both. Provide sway bracing, diagonal bracing, and reinforcement as required for rigid installation of track and door-operating equipment.

3. Repair galvanized coating on tracks according to ASTM A 780.

3.3 STARTUP SERVICES

A. Engage a factory-authorized service representative to perform startup service.

1. Complete installation and startup checks according to manufacturer's written instructions.

2. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment.

3.4 ADJUSTING

A. Adjust hardware and moving parts to function smoothly so that doors operate easily, free of warp, twist, or distortion.

B. Lubricate bearings and sliding parts as recommended by manufacturer.

Retain first paragraph below if weathertight installation is required.

C. Adjust doors and seals to provide weathertight fit around entire perimeter.

D. Align and adjust motors, pulleys, belts, sprockets, chains, and controls according to manufacturer's written instructions.

E. Touch-up Painting: Immediately after welding galvanized materials, clean welds and abraded galvanized surfaces and repair galvanizing to comply with ASTM A 780.

3.5 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain sectional doors.

END OF SECTION 083613