Ribbed Steel 3241

COMMERCIAL

3241: Insulated Ribbed Steel Doors

Polystyrene Insulation/24 gauge with Vinyl Back

Whether you’re unloading trucks or moving equipment, our steel commercial overhead door products excel in high demand applications.

OVERVIEW


Model 3241 insulated pan ribbed steel doors have a variety of features to meet your design and performance requirements. This line of rugged, heavy-duty commercial garage doors is built to withstand a high volume operation. With our insulated ribbed steel commercial doors, you can count on high performance, everyday reliability, and long lasting durability.

Section Construction:

  • 2″ thick pan sections
  • 24 gauge steel exterior/vinyl back
  • Polystyrene Insulation – R-Value 8.0**
  • Ribbed Panel Profile (2 horizontal ribs with alternating “v” grooves)

Size:

  • Max standard size 34’2″ wide x 20′ high

Colors/Appearance:

  • White, Brown, Sandstone, Gray
  • Stock RAL powder-coat option in 188 colors
  • Various accessories and options available

**R-Values have been calculated in accordance with ASTM C518 standards

SECTIONS


SECTION CONSTRUCTION:

  • Roll-formed sections are 24-gauge 2″ thick, hot-dipped galvanized with a baked-on polyester finish
  • Box shaped stiles are riveted to the face of the section and are galvanized for additional corrosion protection
  • Tongue and groove meeting rails provide superior rail strength and weather resistance
  • Panel Profile: 2 horizontal ribs with alternating “V” grooves

Insulation

  • 1-1/2” thick CFC free polystyrene
  • Vinyl inside cover laminated to polystyrene
  • R value 8.00 (R-value Testing is in accordance with ASTM C518 standards)
    closeup-ribbed-steel
    20-gauge ribbed steel panel
    Ribbed Insulation Detail

    Ribbed Insulation Detail

    Polystyrene Insulation with
    Vinyl Backer

    11-section-joints
    Tongue & Groove meeting rails
    seal out the elements
    12-stiles
    Box-shaped stiles provide added
    rigidity and section strength

    MAXIMUM STANDARD SIZE:

    • Max width 24’2” x 16’ high (Contact Factory for larger sizes)

Colors / Finish:

front-exterior-color-white2
White
1gray
Gray
front-exterior-color-sandstone
Sandstone
front-exterior-color-brown
Brown
2powercoat-color-sheet
Optional Colors include RAL powder-coat in 188

Panel Configurations:

  • 21″ or 24″ high by width of door
model-3241-panel-config-1
model-3241-panel-config-2

TRACK


Track Configuration:

  • Tracks are 2′ or 3′, as specified
  • 12″ radius, 15″ radius
  • Normal Headroom, Low Headroom, Vertical Lift, High Lift, Incline
  • 20″ & 32″ radius (2″ track & up to 10′ high doors only)

Normal Headroom / Standard Lift View>>

chi-track-options-standard-lift

Low Headroom: Front Mount View>>

chi-track-options-low-headroom

Low Headroom: Rear Mount View>>

chi-track-options-low-headroom-rear

Vertical Lift View>>

chi-track-options-vertical-lift

High Lift View>>

chi-track-options-high-lift

Incline View>>

incline-lift

Mounting Options:

  • Bracket Mount (leg out), Clip Angle Track, Continuous Angle Track

Bracket Mount View>>

chi-track-options-bracket-mount

Clip Angle Track View>>

chi-track-options-clip-angle

Continuous Angle Track View>>

chi-track-options-continuous-angle
Reverse Angle Mount View>>
Available for Clip Angle & Continuous Angle Track

chi-track-options-reverse-angle

Track Gauge:

  • 2″ Tracks – up to 8′-0″ high = 17 gauge roll-formed galvanized steel
  • 2″ Tracks – 8′-0″ 10′-0″ = 16 gauge
  • 2″ Tracks – over 10′-0″ = 14 gauge
  • 3″ Tracks – 12 gauge

HARDWARE


Hinges:

  • 11-gauge or 14-gauge hinges, as specified

    double-end-hinges

    Rollers:

    • 2″ or 3″ long-stem or short-stem steel ball bearings rollers

    2-inch, 3-inch Steel Rollers

    Brackets:

    • Top fixtures (min. 12 gauge)
    • Bottom fixtures (min. 13 gauge)

    bottom-fixture

    Single or Double Edge Endstiles:

    double-hinge-end-stiles.

OPERATION


Counterbalance System (Springs)

  • Oil tempered torsion springs are mounted on a cross-header shaft supported by galvanized steel ball breaking end plates and center bracket(s)
  • Springs are calculated for exact door weight, size and trajectory in accordance with ANSI 102 standards for a minimum of 10,000 cycles
    NOTE: May be specified for higher cycles when available
  • Counterbalance is transferred through galvanized aircraft quality cables secured to bottom of the door
torsion-spring-assembly
Above, Torsion/Spring Assembly with Four Spring Layout, Standard Headroom

com-springs

Operation:

  • Manual Operation
  • Motor Operation: Trolley or Jackshaft
  • Chain Hoist Operation
jackshaft
Jackshaft Operation
trolley-operation
Trolley Operation

LITES


Optional Lites / Windows

  • 24″ x 6″, 24″ x 12″, or 34″x 16″ lites with 1″ insulated glass (Clear, Tempered or Tinted)
  • Optional Aluminum Full View Frame to match size and panel layout of steel section
    (Optional open for field glazing, 1/8″ DSB, 1/8″ polycarbonate, 1/8″ tempered glass, 1/4″ tempered glass, 1/2″ insulated glass or 1/2″ tempered insulated)
  • Special glass options available. Contact factory for details.
    24-x-12
    24″ x 12″ (shown is 24″ section height)
    24-x-6-3206
    24″ x 6″ (shown is 24″ section height)
    34-16
    34″ x 16″ (shown is 24″ section height)
    full-aluminum

OPTIONAL ACCESSORIES


Doors are available with a variety of Specialty Options for specific installation needs. Contact Factory for additional options.

Swing-Up Sectional Post A perfect answer for openings that are too large for a single overhead door that must accommodate large machinery or equipment on an infrequent basis. Operating on a single pivot point that is designed to swing left or right, it allows the use of one (1) smaller door for everyday requirements and the full opening when needed. See video.

swing-up-sectional-post

Pass Doors Whether it’s for convenience or necessity, there are circumstances where a pass-through door is requested to provide ingress and egress in an overhead door enclosed opening without having to open the overhead door. C.H.I. can accommodate this need with a state-of-the-art design pass-door option. Available in our urethane core models 3216 and 3212, it’s the ideal choice to solve this need.

pass-door-closed pass-door-open

Header & Jamb Seals Seal the perimeter of the opening to provide additional air infiltration and thermal protection.

overhead-door-top-seal

CERTIFIED WINDLOAD


Wind can be unpredictable and destructive. This is why C.H.I. Windbreaker Series and iSeries doors are designed, tested, and built to the most rugged specifications. Wind chamber tested to ensure windload resistance, these extra-sturdy designs provide enhanced defense against the elements.

C.H.I. Overhead Doors developed the resilient Windbreaker Series garage doors to protect against high wind conditions. The super-resilient C.H.I. iSeries Impact Approved doors have strength designed to withstand direct collision of projectiles and other windborne debris at high speeds.

chi-impact2-clr-outlines windbreaker-logo

Additional Windload Information:
Navigating the complex windload codes and compliances can be a daunting task. C.H.I. sales associated and distributors are able to help you understand the specific codes governing your geographic area. For additional information, these websites offer a great deal of information.

dasma-logo

Technical Data Sheets:

  • TDS #168 – Wind Loads on Garage Doors – FAQ
  • TDS #177 – Application of Kd Factor To Garage Door Wind Load Determination Using ASCE 7
  • TDS #178 -Garage Door Wind Load Determination – Effective Wind Area
  • TDS #180 – Wind Load Ratings for Non-Tested Garage Door and Rolling Door Sizes
  • TDS #181 -General Code Inspection Guidelines For Wind Load Rated Garage Doors
florida-building-code tdi-logo
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