Steel Frame + Foam-Cement Core: How PanLbilt Panels Are Built

"Steel and foam-cement panel" describes a composite assembly, not one material. Each PanLbilt panel combines three components, each doing a distinct structural job, fabricated together in a controlled factory process before shipping flat for field assembly.

1. Galvanized steel frame

The steel frame forms the internal structural skeleton of the panel — the load path that carries the panel's structural forces. Galvanizing protects the frame against corrosion over the building's service life, which matters most in the humid or coastal conditions where corrosion risk is highest for conventional steel framing.

2. Fiber-cement board

Fiber-cement board is affixed to the panel frame to form the panel faces — the finished interior and exterior surfaces of the wall. It's non-combustible and dimensionally stable, which is part of what supports the assembly's Class A1 fire performance rating, and it doesn't share the moisture and pest vulnerabilities of wood-based sheathing.

3. Injected foam-cement core

Once the frame and faces are assembled, foam cement is injected into the panel cavity and cures into a rigid core. This is the component that does double duty: it adds structural rigidity to the finished panel while also filling the cavity with a continuous insulating and fire-resistant material — no batt insulation, no gaps for thermal bridging at stud lines.

Why the combination matters more than any single material

Judged separately, none of these three materials is unusual — galvanized steel framing, fiber-cement siding and rigid insulation all exist independently in conventional construction. What differs is that PanLbilt fabricates all three into a single structural panel before it reaches the site, rather than assembling them as separate trade sequences (framing, then sheathing, then insulation, then siding) in the field. That's what collapses a multi-trade, multi-week wall assembly sequence into a single crane-set panel installation.

What this doesn't replace

Panel materials and fabrication are only one part of a project's structural picture. Final structural, fire, wind, seismic, thermal and code performance still has to be verified for the specific project, jurisdiction and assembly configuration — this is the role of the testing, findings and jurisdictional approvals behind the system, and of your project's own engineer of record. The panel composition explains how the system behaves; it isn't a substitute for project-specific engineering sign-off.