Thermacore® Model 591
Thermacore Doors | Commercial Products
When your project requires a sectional door with an exceptional degree of thermal efficiency, the Thermacore® Sectional Steel Door Model 591 is a proven performer. The Thermacore® steel-polyurethane-steel panel construction provides a thermal barrier that withstands extreme climatic conditions and the most demanding environmental requirements.
This 1 5/8” (41 mm) thick, heavy duty door fits a wide range of opening sizes and the spectrum of applications — making it the best-selling door system in the Thermacore® line and one of the most-specified insulated sectional doors in the industry. Boasting a U-factor of .13 (R-value-14.86) and one of the best air infiltration ratings, the Thermacore® 591 will meet or exceed almost any thermally efficient application requirement.
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Door Options
- Chain Hoist or Electric Operator is recommended for doors above 10’ tall or more than 400 pounds
- Aluminum sash section available up to 24’2″ (7,366 mm) wide
- Insulated glass, tempered glass, polycarbonate, multi-wall polycarbonate, etc.
- High performance fluoropolymer coating (Trinar® or equivalent)
- Four-section pass door
- High-usage package
- Wind load options
- Electric operator
- Chain hoist
- Posi-Tension™ drums
- Safety bottom fixture
- Bottom-sensing edge
- Flexible jamb, header seal
- Exhaust ports
- Window Glazing Options
- Impact Section Available
Colors
Exterior Color
White 
Gray 
Tan 
Industrial Brown
Black
High performance fluoropolymer coating (Trinar® or equivalent) finish option available in white, brown and beige. Offers superior performance.
Actual door color may vary from the digital representation shown here. Color samples are available by request through your Overhead Door™ Distributor.
Features
- Standard max width 35’2″ (10,719 mm)
- Standard max height 24’1″ (7,341 mm)
- Panel thickness 1 5/8″ (41 mm)
- U-factor* .13
- R-value** 14.86 (2.63 W/m2)
- Air infiltration at 15 mph (24 kmph) .08 cfm/ft2 (1.46 m3/hr/m2)
- Thermal break PVC
- *U-factor values are independently tested and verified per ANSI/DASMA 105. **Overhead Door™ uses a calculated door section R-value for our insulated doors.
- Exterior Steel .015″ (.38 mm) galv.
- Exterior Surface Ribbed, textured
- Standard Springs 10,000 cycles
- Wind Load Designs available for usage in high-wind conditions
- 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
*U-factor values are independently tested and verified per ANSI/DASMA 105.
**Overhead Door™ uses a calculated door section R-value for our insulated doors.
