Insulated Sectional Steel Doors ThermoMark™ Model 530

Insulated Sectional Steel Doors ThermoMark™ Model 530

ThermoMark™ Model 530 is the strongest and most thermally efficient door in the Wayne Dalton product line-up. Premium 3” thick foamed-in-place polyurethane insulation features continuous steel strips for flexibility in hinge placement. The preferred choice for large openings where thermal performance and durability are essential. ThermoMark™ insulated doors help to minimize energy costs and provide year-round comfort and security for your building. ThermoMark™ Model 530 is designed to deliver optimal performance in commercial and industrial applications where climate control, durability, and less maintenance are the primary concerns.

Ideal Applications Include:

Distribution Centers    |   Storage Facilities    |   Commercial Buildings    |    Industrial Facilities    |    First Responder Facilities    |    Municipal Buildings    |    Retail Buildings    |    Manufacturing Plants    |    Production Facilities    |    Loading Docks


Standard ConstructionModel 530
Max. Width40'
Max. Height24'
Exterior27-gauge Steel
Thickness3" Foamed-in-place Polyurethane
Joint ProfileTongue-and-groove
Spring Cycles10,000
Exterior SurfaceStucco Embossed / Pinstripe
U-factor*  .07
Air Leakage†0.09
Sound Transmission (STC)Class 22
Air Infiltration (IECC)0.21 cfm/ft2 at 25 mph
Wind Load (optional)Yes***

*U-factor is independently tested and verified per ANSI/DASMA 105 using solid doors and specific product sizes.
**Wayne Dalton uses a calculated door section R-value for our insulated doors.
*** Only internally approved wind load reinforcement is available to withstand conditions in wind prone areas
† with jamb seal


Durable Design

  • Hot-dipped galvanized steel and rugged construction will give years of solid performance for the most demanding conditions
  • Bottom weather seal with rigid PVC retainer and dual durometer PCV bulb seal locks out air and water leakage through the bottom section

Thermal Performance

  • Helps minimize energy costs with a patented dual barrier tongue-and-groove joint profile that creates a virtually impenetrable path for air leakage
  • Inside and outside skins are roll-formed and separated with a 1-3/4” true PVC thermal break to eliminate heat or cold transfer to be the strongest and thermally efficient
  • 3” thick foamed-in-place polyurethane sections feature continuous steel strips for flexibility in hinge placemen


  • 1-year limited
dasma thermal performance verification program details