591 series

thermacore-sectional-door-591-600

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 an R-value of 14.86 (2.63 W/m2), a U-value of .067 (.380 m2/W), and one of the best air infiltration ratings, the Thermacore® 591 will meet or exceed almost any thermally efficient application requirement.

Features

Standard max width 
35'2" (10,719 mm)

Standard max height 
24'1" (7,341 mm)

Panel thickness
1 5/8" (41 mm)

R-value 
14.86 (2.63 W/m2)

U-value 
.07 (.38 m2/W)

Air infiltration
at 15 mph (24 kmph) .08 cfm/ft2 (1.46 m3/hr/m2)
at 25 mph (40 kmph) .08 cfm/ft2 (1.46 m3/hr/m2)

Thermal break 
PVC

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

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Strong, Lightweight, Attractive and Durable.
Thermacore® 591 sectional steel doors feature roll-formed, hot-dipped galvanized steel exterior panels designed for exceptional strength and sound suppression capabilities. Wind load design available for usage in high-wind conditions. Two coats of baked-on, polyester paint on a ribbed, textured exterior surface provide a handsome finish that will last for years. Our industry-leading 10-year limited warranty against delamination means that we’ll stand behind the quality of our doors at the outset and for the long haul.

Superior Field Serviceability.
Thermacore® has a special internal construction which allows hinges to be placed anywhere along the panel’s length permitting customization on the job site — for fast and precise installation, repair or retrofit.

Built With the Best Technology in the Business.
This sectional steel door is manufactured using Overhead Door Corporation’s proprietary, computer-controlled fabrication process. This advanced technology ensures adherence to the industry’s strictest product tolerances and results in an exceptionally well-built door for outstanding thermal efficiency and longlasting performance.

Many Options, Better Solutions.
The Thermacore® sectional steel door model 591 fits openings up to 35'2" (10.7 m) wide and 24'1" (7.3 m) high. A full line of electric operators ensures precise and trouble-free motor operation in a variety of mounting options (side, center or trolley). Available options include aluminum sash section, thermal glazing, pedestrian pass door, impact panel, and jamb weatherstripping. Optional high-usage components expand the versatility of the 591 to high-cycle conditions, with torsion springs in 25k, 50k, 75k or 100k cycles, a solid-steel shaft to reduce fatigue and deflection, and a heavy-duty 3" (76 mm) steel track for added durability.​​​

Door Options
Documents