U-Factor measures how well a window insulates on a scale of 0 to 1. The lower the number, the better the window insulates.
According to the chart above, here’s how our triple-pane windows with a 0.21 U-Factor compare to others:
- Single-Pane Windows: The average single-pane window has a 0.91 U-Factor. This is as inefficient as it gets! Rescom windows are 433% more efficient.
- Clear Double-Pane Windows: These have a 0.62 U-Factor on average, which is still very poor for the New England climate. Rescom windows are 295% more efficient.
- ENERGY STAR Windows: For New England, windows need a U-Factor of 0.32 or lower to be ENERGY STAR-certified. This is the bare-minimum standard you should accept from your new windows. Rescom windows are 152% more efficient.
- ARRA Requirement: ARRA stands for American Recovery & Reinvestment Act. Windows that meet the Act’s 0.30 U-Factor may qualify you for a tax credit. Rescom windows are 143% more efficient.
- Renewal By Andersen: A well-known brand in New England, Renewal By Andersen windows have a U-Factor of 0.29. Rescom windows are 138% more efficient.
- R-5 Windows: R-5 windows are known for their highly insulative properties. They have an exceptional 0.22 U-Factor. Rescom windows are 104% more efficient.
- Rescom Windows: Our windows (labeled “Super T-E, Alpha-10” on the chart) have an unrivaled U-Factor of 0.21. That’s one of the best in the biz!
Bottom line: Custom-engineered for the New England climate, Rescom Windows maximize your energy savings and keep you comfortable year-round.