Thermacore® Sectional Steel Door - 599

Model 599

With a U-factor of .10 (R-value of 17.5), and one of the best overall air infiltration ratings in the industry, the Thermacore® Sectional Steel Door Model 599 is one of the most thermally efficient door systems in its class. The Model 599 doors also carry a Class 26 sound transmission rating for applications where sound suppression is desirable.

The Thermacore® line features steel-polyurethane-steel panel construction which provides a thermal barrier that withstands extremely hot or cold climates and the most demanding environmental requirements.

Construction

Product Specifications
Standard Max Width 40’2″ (12,243 mm)
Standard Max Height 32’1″ (9,779 mm)
Panel thickness 2″ (51 mm)
U-factor* .10
R-value** 17.5 (3.09 W/m2)
Sound Transmission Class 26 Ideal for applications that require sound control
Air infiltration at 25 mph (40 kmp/h) .13 cfm/ft2 (2.37 m3/hr/m2)
Thermal break PVC
Exterior Steel .015″ (.38 mm) galv.
Exterior Surface Flush, textured
Standard Springs 10,000 cycles
Wind Load Designs available for usage in high-wind conditions

*U-factor values are independently tested and verified per ANSI/DASMA 105.
**Overhead Door™ brand uses a calculated door section R-value for our insulated doors.

Warranty

  • 10 year limited delamination
  • 1 year limited on door
  • 3 year/20,000 cycle limited on door & operator system (when purchased together; on material and workmanship)
  • 20 year limited on high performance fluoropolymer coating option

“Overhead Door is a trademark and the Red Ribbon logo is a registered trademark of Overhead Door Corporation”.

© 2026, Overhead Door Company of The Desert™ | All Rights Reserved

Web Design and Digital Marketing by Lead Nurture Close Marketing

Get Started Today

Request A Quote