Up to 25% of your heating bill is thrown straight out the window through heat loss. High quality window blinds and shades can increase energy efficiency by as much as 80% through insulation. How much cash are you throwing out every hour?
- Windows can account for 10%-25% of your heating bill through heat loss.
- Windows represent 15%-20% of a typical home’s wall surface area.
Energy Leaks Around Your Home
Get a home energy audit and save yourself money.
- 12% through unblocked chimneys and drafts around doors and windows
- 42% through the ceiling
- 10% through the floor
- 24% through the walls
- 12% through the windows
Window Treatments Reduce Heat Loss & Gain
Blinds, shades, and drapes trap air to increase thermal insulation.
- Roller Shades: Reduce heat loss up to 25%
- Shutters: Increases insulation up to 20%
- Roman Shades: Increases insulation up to 25%
- Cellular Shades: Increases insulation up to 60%
- Solar Screens: Up to 80% of the sun’s heat blocked
- Wood Blinds: Increases insulation up to 20%
- Faux Wood Blinds: up to 75% if the sun’s heat blocked
Other Ways to Save
- Add caulk around windows
- Add awnings for energy efficiency
- Upgrade windows: Look for the Energy Star Logo and Use NFRC information
Are Your Windows Certified?
Check to see if your windows are certified by the National Fenestration Rating Council. All windows certified by the NFRC get this label.
- Solar Heat Gain: coefficient measures how well the window blocks heat from the sun (varies depending on climate)
- Air Leakage: measures how much air from outside enters the home through the window (under 0.3 is best)
- Visible Transmittance: measures how much light shines through the window (higher is better)
- U-Factor: measures how well a window prevents heat from escaping (lower is better)
Calculate How Much Heat You’re Losing By The Hour
Q = A x U x (Ti – To)
- Q = Hourly rate of heat loss
- A = Area of window glass in square ft
- U = U-factor is how well a product insulates
- Ti = Inside air temperature
- To = Outside air temperature
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