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Insulated Sectional Steel Doors ThermoMark™ Model 5255

Insulated Sectional Steel Doors ThermoMark™ Model 5255

ThermoMark™ Models 5155 and 5255 insulated commercial sectional doors are extremely rugged and durable, with excellent thermal insulation qualities. For commercial projects that require a door with strength, insulation and an overall solid performance, these doors are the ideal choice.

Featuring CFC and HCFC-free polyurethane foam insulation, Models 5155 and 5255 are available with two different levels of thermal performance. The ThermoMark™ 5255 is rated with a U-value* of .0616 (R-value* of 16.22), while the ThermoMark™ 5155 has a U-value of .0825 (R-value* of 12.12).

The ThermoMark™ 5155 and 5255 both feature hot-dipped galvanized steel construction that is pre-painted prior to manufacturing with a two-coat system of polyester paint with a finished coat (includes primer). The inside and outside skins are roll-formed and separated with a thermal break to eliminate thermal conductance. Hinge locations have 20-gauge continuous back up plates for fastening. The bottom astragal is a two-piece bulb-type astragal to be attached to the interior skin. ThermoMark™ Models 5155 and 5255 section ends have end caps of 18-gauge hot-dipped galvanized steel, and a between-section joint seal is standard.

*Wayne Dalton uses a calculated door section R-value and U-value for insulated doors.

BIM objects are for general reference and should not be used for exact construction information. Please contact a Wayne Dalton Dealer when exact dimensions are required.

Specification
  • Key Product Features

    • Max Width: 20’2” (5155) and 26'2" (5255)
    • Max Height: 20’1”
    • 27-gauge exterior steel
    • Polyurethane insulation, R-value*=12.12 (5155) and 16.22 (5255)
    • 1-3/8” (5155) and 1-7/8" (5255) section thickness
    • Continuous steel strips for hinge attachment
    • Stucco embossed exterior with pinstripes

    *Wayne Dalton uses a calculated door section R-value for insulated doors.

    Options & Accessories

    • Chain hoist operation
    • Motor operation
    • High cycle springs (25k, 50k, 100k)
    • 3” track
    • Solid shafts
    • Perimeter weatherseal
    • Broken cable devices
    • Sensing edges
    • Photo eyes
    • Special track designs
    • Mullions

    Impact Panel

    • Wayne Dalton’s optional Impact Section replaces the traditional bottom section on doors exposed to damage from forklifts and other warehouse traffic.
    • Reduces downtime and costly repairs
    • Impact-Resistant composite skins surround an expanded polystyrene core
    • Fully adaptable to multiple door thicknesses with hinge and section adapters to provide a superior fit
    • Available for 21" and 24" sections
    • Available from 8’2” to 16’2” wide in one-foot increments
Technical specification
  • Unique ref.insulated-sectional-steel-door-5255
  • Product familyCommercial Doors
  • Product groupSectional Doors
  • TypeObject (single object)
  • Date of publishing2023-12-08
  • Edition number1
Related
  • Material mainSteel
  • Designed inUnited States
  • Manufactured inUnited States
Classification
  • BIMobject CategoryDoors - Industrial Doors
  • IFC classificationDoor
  • CSI MasterFormat 2014 Code08 36 13
  • CSI MasterFormat 2014 TitleSectional Doors
  • OmniClass Number23-17 11 13 25 13
  • OmniClass TitleSectional Overhead Metal Doors

Region availability

North America
Anguilla
Antigua and Barbuda
Aruba
Barbados
Belize
Bermuda
British Virgin Islands
Canada
Caribbean Netherlands
Cayman Islands
Collectivity of Saint Martin
Costa Rica
Cuba
Curaçao
Dominica
Dominican Republic
El Salvador
Greenland
Grenada
Guadeloupe
Guatemala
Haiti
Honduras
Jamaica
Martinique
Mexico
Montserrat
Nicaragua
Panama
Puerto Rico
Saint Kitts and Nevis
Saint Lucia
Saint Pierre and Miquelon
Saint Vincent and the Grenadines
Saint-Barthélemy
Sint Maarten
The Bahamas
Trinidad and Tobago
Turks and Caicos Islands
U.S. Virgin Islands
United States