The MI Blog

Stay connected and be inspired by browsing our blog posts. The window experts on our team share their insights, advice, tips and knowledge so you’ll always have a go-to resource for all things windows.

 
  • May 5, 2015

    Leading Manufacturer of R-5 Windows

    MI Windows and Doors, committed to continuous improvement, is a proud participant in the U.S. Department of Energy’s R-5 High Performance Window Volume Purchase program. R-5 windows are the top tier of energy efficient windows with a whole-window U-Value of .22 or below. These windows are among the most efficient windows available today for all climates.

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