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A free tool for ALUMIL customers

This calculator is an easy to use excel file which will demonstrate the energy efficiency of ALUMIL aluminium systems.
This excel file tool has been designed to calculate the thermal transmittance (U Value) of windows and doors using ALUMIL window & doors profiles. Also, the user can calculate U values for specific sizes and styles of windows and doors.

Benefits of the Uw Calculator:

  • Compatible with desktops, tablets & smartphones
  • Certified Uf performance is calculated
  • Determines the percentage of aluminium on the frame’s total surface
  • Exact frame dimensions for multiple typologies are taken into consideration
  • Exact calculations according to the glazing type (double or triple glazing) and various Ug, psi & g values.
  • Analyzes the effect of the roller shutter on the total Uw of the frame

How It Works

  • Fill in the frame details in order to measure the Uw factor
  • You see the results, which you can also print for later use
If you have any requirements which are not covered within this calculator excel, or you have any questions relating to its use, please contact