Premium 3” Thick Polyurethane Insulated Door Delivers Optimum Return on Investment

insulated sectional steel door model 530

Key Product Features:

  • Polyurethane insulation, R-Value*=26
  • Max Width 40’2”
  • 3” Section Thickness
  • Continuous steel strips for hinge attachment
  • Patented Dual Barrier Tongue and Groove Joint Profile
  • PVC Thermal Break – prevents heat/cold transfer on end stiles
  • Embossed stucco exterior with pinstripes available in 4 colors

ThermoMark 530 is the strongest and most thermally efficient door in our product line-up. It was designed to withstand tough weather conditions and is the preferred choice for larger openings.

Wayne Dalton ThermoMark insulated doors help minimize energy costs and provide year-round comfort and security for your building. Hot-dipped galvanized steel and rugged construction will give years of solid performance for the most demanding conditions.

IECC® Compliant

The ThermoMark 530 meets IECC® requirements for maximum U-Factor of operable fenestrations (2015 Section C402.4) with a 3rd party certified tested value of less than 0.37. ThermoMark™ 530 also meets the ASHRAE 90.1 and IECC® requirement for maximum air leakage for fenestration assemblies (2015 Section C402.5.2 Garage doors) with a 3rd party certified tested value of less than 0.40.

Materials & Construction

The ThermoMark 530 is designed to deliver optimal performance in commercial and industrial applications where climate control, durability and less maintenance are the primary concerns. These premium 3" thick foamed-in-place polyurethane insulated doors have a calculated r-value* of 26, and an installed U-Factor of .14 Btu/hr *ft2*F° (.80 W/m2)§, as well as a low air infiltration rating of .09 cfm/sq ft. at 15 mph.+ A sound transmission class of 22 minimizes noise transfer through and around the door.

  • 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).
  • Inside and outside skins are roll-formed and separated with a 1-3/4" true PVC thermal break to eliminate heat or cold transfer from front to back steel skins.
  • Continuous steel strips allow hinges to be placed anywhere along the section and provides the ability for sections to be inventoried and cut down to size.
  • Bottom weatherseal is a two-piece bulb type astragal that is specially designed to include one interior dual durometer PVC bulb and one exterior EPDM++ bulb. (outer EPDM seal is optional).
  • Section end stiles are 14 or 16 gauge hot-dipped galvanized steel and feature a PVC thermal break to eliminate heat or cold transfer from front to back steel skins.
door tongue
Patented dual barrier tongue and groove joint profile creates a virtually impenetrable path for air leakage in between sections.
door weatherseal
Bottom weatherseal with rigid PVC retainer and dual durometer PVC bulb seal locks out air and water leakage through the bottom section. Optional outer EPDM bulb seal provides additional protection.
jamb seal
Enhanced thermal performance jamb seal (patent-pending) (optional) combines a longer flapper seal and bulb seal for superior perimeter protection.
3" thick foamed-in-place polyurethane sections feature continuous steel strips for flexibility in hinge placement.
door PVC
PVC thermal break on end stiles limits the transfer of temperature.


Color Options

Embossed Stucco with Pinstriping

door color white stucco

door color almond stucco

door color taupe stucco

door color brown stucco


Window Options:

steel door window
polycarbonate lites
Multiwall Polycarbonate Lites
Large lites available with insulated glass, tempered glass, or multi-wall polycarbonate glazing (brown, white or clear). Black frame is standard. Color matched frames are available.


*Wayne Dalton uses a calculated door section R-value for insulated doors.
§U-Factor: lower number delivers better performance for an installed door.
+with optional jamb seal
++EPDM - ethylene propylene diene monomer rubber. Used in the automotive industry for its superior durability.