Energy Efficient Window

Energy efficiency is no longer a premium luxury for building professionals; it is an expected standard feature. The Envision Series windows exceed the new Energy Star® 7.0 window standards with our triple-pane glass option —a clear sign of superior window performance.

Money Saving Efficiency

Energy efficient window framingOur standard double-pane, LoE coated, double-strength glass can dramatically reduce window heat loss. The interior glass stays warmer in cold temperatures, protecting homes from the chill of winter. In the summer, the windows transfer less heat by filtering the sunlight and reflecting it back outdoors. That means lower energy costs, no matter the climate.


Beyond Lower Costs

example of three glass panes side by sideOur Vector windows and doors provide exceptional interior comfort and meet some of the highest energy efficiency standards. The LoE coating on every pane of glass in Vector windows and doors helps to protect interiors from sun damage by blocking harmful ultraviolet rays without noticeably reducing visible light. Our windows and doors also deliver more comfort and create less condensation than conventional alternatives. 

Traditional metal spacers conduct heat and cold, which causes unsightly condensation at the edge of the glass that can contribute to unhealthy mold growth. By implementing a warmer edge around all sides of the window, our Vector window and door designs strike at the heart of the problem. Vector windows and doors use an industry-leading, non-metallic insulating structural foam spacer which helps reduce condensation and allows for more comfortable household humidity levels.

For more information on energy efficiency and sustainable building, visit and

What is my ENERGY STAR Climate Zone? 

Click this link to quickly search for your specific Climate Zone. Windows, Doors, and Skylights Climate Zone Finder | Products | ENERGY STAR

  • Minnesota - Northern
  • North Dakota - Northern
  • South Dakota - Northern
  • Wisconsin - Northern
  • Iowa - Northern
  • Nebraska - Northern
  • Montana - Northern