• Thermacore Overview
  • General Features
  • Door Detail Brochures

Thermacore® is the premier insulated steel sectional door today. It is an ideal choice for applications that demand the highest levels of thermal efficiency, air infiltration and windload resistance. Manufactured using a unique, computer-controlled process, Thermacore® steel-polyurethane-sandwich panels are lightweight, incredibly strong and exceptionally energy efficient - even under the most severe climatic conditions. Suitable for a wide rang of applications, Thermacore doors feature a host of industry-leading design innovations - including dual PVC thermal break and joint seal, a CFC-free polyurethane core, and a special internal construction for eay field serviceability.

To ensure quick repairability, Pioneer Door is a stocking dealer in the Thermacore® Series 591, 592, 596 doors and 595 replacement sections.


R-Values Up to 17.50 (3.09 W/Msq) and
Air Infiltration Performance up to .08 cfm at 25 MPH (2.26 Lpm at 40 kmph)

  • Continuous foamed-in-place panel construction provides one of the highest R-values in the industry year in, year out
  • Dual PVC thermal break and joint seal between internal and external skins minimize air infiltration and provide the highest door system thermal efficiency in the industry
  • Specially designed track and heavy-duty fixtures ensure a tight and reliable fit

Lightweight, Strong and Durable Panel Construction

  • Continuous foamed-in-place panel construction provides superior thermal efficiency, and exceptional strength-to weight ratio and proven durability
  • Roll-formed, hot-dipped galvanized steel interior and exterior panels
  • Two coats of baked-on polyester paint provide a durable finish

Meets Stringent Windload Requirements (optional)

  • Exceptional panel strength and superior track design withstands harsh wind conditions.

Environmentally Friendly

  • Specially formulated polyurethane foam insulation ensures no ozone-damaging CFCs are used in the manufacturing process or in the panels

Easy Field Repairability

  • Unique design allows “on-site” door customization for quick and precise installation, replacement or repairs

A Broad Line to Fit Every Application

  • Standard door widths up to 40’2” (12,243 mm) and heights up to 32’1” (9,779 mm)
  • Doors for extra-heavy-duty, heavy-duty, medium-duty and light-duty applications

Built to Last

  • 10-year* limited warranty against panel delamination of foam and steel skins

High-Usage Components for Special Applications
Promotes Long Life and Low Maintenance

  • Heavy-duty, precision ground headplate bearings for enhanced counterbalance performance
  • Oil-tempered, heavy-duty helical wound, torsion springs, available in 25,000, 50,000, 75,000 or 100,000 cycles for extra long life
  • Solid-steel counterbalance shaft reduces fatigue and deflection
  • Double end stiles and end hinges lessen loads on door-section
  • Heavy-duty 3" (76 mm) hot-dipped galvanized steel track and 10 ball-bearing, long-stem rollers
  • Additional center hinges reduce overall door section hinge loads
  • Bottom sensing edge stops/reverses door upon contact with an obstruction

*8-year on 598 Series


For your convenience, detailed information for Thermacore Door Selections and Thermacore Door systems are available for download in Adobe PDF format as either the entire Overhead Door color brochure for the 591, 592, 593, 594, 596, 598 and 599 product line, or as standalone documents.

Commercial Doors Brochures and Literature
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