Panel Dimensions

Enter length and width in millimeters. Thickness is pre-set per system but can be overridden.

mm
mm

Values are estimates based on typical material densities and industry-standard thicknesses. Actual weights vary by mix design, reinforcement, and fabrication method. Consult your precaster or manufacturer for project-specific data.

Why Facade Dead Load Matters

Panel weight per square meter — the facade dead load — is one of the first parameters structural engineers need when sizing the building frame. It determines connection capacity, steel tonnage in the backup structure, and crane requirements during erection. A lighter facade system doesn't just save material at the panel — it cascades savings through the entire structural and logistics chain.

For high-rise projects, reducing facade dead load by 40–60% (as UHPC enables versus conventional precast) can meaningfully reduce the size of edge beams, embed plates, and erection equipment. On a 40-story tower, those reductions compound across thousands of panels.

How UHPC Achieves Lower Weight

UHPC's compressive strength exceeds 150 MPa — roughly 5–8× that of conventional concrete. Its steel fiber reinforcement provides tensile capacity that eliminates the need for traditional rebar cages. Together, these properties allow facade panels to be cast at 20–25mm thickness instead of the 65–100mm required for conventional precast.

The result: a UHPC panel at 2,500 kg/m³ density and 22mm thickness weighs approximately 55 kg/m². A conventional precast panel at 2,400 kg/m³ density and 75mm thickness weighs approximately 180 kg/m². That's a 69% reduction in dead load — not from using a lighter material, but from needing far less of it.

System-by-System Comparison

UHPC (Ultra High Performance Concrete)

Typical facade thickness: 20–25mm. Density: ~2,500 kg/m³. The higher density than conventional concrete (due to optimized particle packing and steel fibers) is more than offset by the dramatically thinner cross-section. UHPC panels are self-supporting at these thicknesses without internal reinforcing steel.

Conventional Precast Concrete

Typical facade thickness: 65–100mm. Density: ~2,400 kg/m³. Panels require internal rebar or welded wire reinforcement. Minimum thickness is governed by cover requirements over reinforcement and handling stresses during demolding and erection, not by in-service structural demand.

GFRC (Glass Fiber Reinforced Concrete)

Typical skin thickness: 19–25mm (¾"–1"), but GFRC facade panels are not monolithic skins — they require a steel stud frame and backing board. The total system weight (skin + frame + connections) typically comes to 60–90 kg/m² depending on panel size and frame complexity. Larger panels require heavier frames.

Aluminum Composite Panel (ACM/ACP)

Typical thickness: 4–6mm. Density: ~2,700 kg/m³ for aluminum. Very light per unit area (10–18 kg/m²), but the comparison isn't purely about weight — aluminum panels have different fire performance, acoustic properties, and aesthetic capabilities. The weight advantage is real but exists in a different performance category.

Natural Stone (Granite/Limestone)

Typical thickness: 30–50mm. Density: 2,500–2,800 kg/m³. Stone veneer is heavy relative to its structural contribution and imposes significant dead load on connections and backup structure. Stone also has limited geometric flexibility — curves, perforations, and thin profiles are difficult or impossible.

Beyond Weight: What the Numbers Don't Show

Dead load comparison is necessary but not sufficient. UHPC's weight advantage is most meaningful when combined with its other properties: 100-year service life (reducing lifecycle replacement costs), exceptional surface finish (enabling architectural expression), and geometric flexibility (flowing into complex mold shapes that other materials cannot achieve).

If your project's primary concern is minimizing weight alone, aluminum composite will always win. But if the requirement is a concrete aesthetic at minimum weight, or a durable cladding system that reduces long-term maintenance in aggressive environments, UHPC occupies a position that no other system matches.

Next step: For detailed material property data behind these calculations, see Material Properties & Mix Design →. For system-level cladding comparisons including cost and durability, see UHPC Cladding Systems →.

UHPC Weight Advantage
69%
Lighter than precast
20–25mm
Typical panel thickness
~55 kg/m²
Typical dead load
2,500
kg/m³ material density
Need Project-Specific Numbers?

Get a Detailed Panel Weight & Cost Estimate

Our calculator provides general estimates. For project-specific panel weights, connection loads, and installed cost projections, contact a UHPC facade specialist.

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