Spandrel Panel Calculator

Opaque panel insulation and finish for spandrel areas.

Panel width (mm)

Panel height (mm)

Target R-value (m²·K/W)

Insulation type (1-3)

Spandrel glass (mm)

Temperature swing (°C)

Tab to move between fields

Insulation thickness (mm)

100

Spandrel U-value (W/m²·K)

0.2

Actual R-value (m²·K/W)4.55

Total build-up depth (mm)133

Glass thermal expansion (mm)1.08

Total panel weight (kg)39.7

Glass weight (kg)27

Insulation weight (kg)5.4

Insulation NamePolyiso

How to Use This Calculator

Enter the spandrel panel width and height in millimeters.
Set the framing system (stick-built or unitized) and thermal insulation R-value.
Input the panel weight for structural dead load calculations.
Review the overall spandrel U-value and estimated annual heat loss.
Use the panel weight to specify anchor design loads in structural drawings.

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