Thermacore Insulated Doors

High‑performance insulated doors engineered to reduce energy loss and deliver long‑term commercial & industrial durability.

Thermacore® insulated doors are engineered to deliver superior thermal efficiency, durability, and dependable performance for demanding commercial and industrial environments. Built with insulated steel construction and precision‑engineered components, these doors help maintain interior climate control, reduce air infiltration, and support efficient daily operations in facilities where temperature stability and reliability matter. From heavy‑duty warehouse openings to climate‑controlled service bays, Thermacore® doors are designed to work hard while minimizing energy loss and long‑term maintenance demands.

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Thermacore® - Insulated Sectional Doors

Why Thermacore® Systems Stand Out

Built for maximum thermal efficiency in climate‑controlled facilities
R‑value range: ~9.3 up to 26.0 (varies by model and thickness)
U‑factor range: ~0.20 down to 0.07
Supports lower energy costs in cold storage, distribution, and manufacturing environments
Foam‑in‑place steel construction delivers long‑term durability and structural strength
Designed as a long‑life asset, not just a door replacement

Model 470 - Insulated Steel‑Back Sectional Door

Balanced efficiency, durability, and a clean interior finish
R‑value: 9.83
U‑factor: 0.23
Provides solid thermal performance without stepping up to premium systems
Steel‑back construction delivers a finished interior look for customer‑facing or
occupied spaces
Helps reduce energy loss while maintaining dependable daily operation
A practical upgrade for facilities needing more than basic insulation, without added complexity