Calumen is a digital simulation program that calculates the light, energy and thermal performances of glazing. The program is designed to calculate the performance of any single glass or combination of glass types and thickness for double and triple insulating glass units.

Each of the surfaces can be coated with a thin coating providing the glazing with specific characteristics (enhanced thermal insulation, solar control, self-cleaning function, etc.).

Calculation reports can be easily outputted to compare performance of alternative configurations and send on electronically if required.