Wayne Dalton ThermoMark 5255 Sectional Door

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. 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.

Wayne Dalton - Sectional Doors

Key Product Features:

  • Polyurethane insulation, R-Value*=16.22
  • Max Width 26’2”
  • Max Height 20’1”
  • 1-7/8” Section Thickness
  • Patented, roll-formed integral struts for rigidity
  • Stucco embossed exterior with pin striping

Other Door Options:

  • Photo Eye
  • Air leakage factor
  • STC rating
  • Pass door
  • Vision lites
  • Aluminum full view sections
  • Chain hoist operation
  • Motor operation
  • Sensing edges
  • High cycle spring (25k, 50k, 100k)

Colour Options:

  • Pre-painted exterior is factory-finished with baked-on corrosion-resistant primer
  • White stucco
  • Almond stucco
  • Taupe stucco
  • Brown stucco
  • TanCustom Colours Also Available
  • This commercial door model is available with the TruChoice™ Color System.
  • Wayne Dalton’s custom painting process that offers more than 6,000+ colours.

Product Documents:


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