Core Options
The door core is the internal fill material that determines the door's weight, structural integrity, fire rating capability, and thermal performance. HMF Express offers honeycomb, polystyrene, and mineral board cores — each selected based on the application's fire, thermal, and structural requirements.
Features
- Honeycomb, polystyrene, and mineral board options
- Core selection affects fire rating capability
- Temperature rise cores available for life-safety applications
- Core choice impacts door weight and thermal performance
Specifications
| Honeycomb | Kraft paper honeycomb; standard non-rated and low fire-rating applications |
|---|---|
| Polystyrene | Foam core; good thermal performance; up to 90-minute fire rating |
| Mineral Board | Required for temperature-rise fire ratings; heaviest option |
| Temperature Rise | Special mineral board core; limits heat transmission in fire scenarios |
| Steel Stiffened | Vertical steel stiffeners with polystyrene fill; added rigidity |
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