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5 Tips for Buying Energy-Efficient Replacement Windows


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Understanding the two important characteristics that affect energy efficiency of home windows is key to buying the most energy-efficient replacement windows. Learn more about U-factors and the Solar Heat Gain Coefficient (SHGC) and the difference they make in picking the right window for your climate zone.

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5 Tips for Buying Energy-Efficient Replacement Windows

  1. 1. 5 Tips for Choosing Energy-Efficient Replacement Windows A little research goes a long way in identifying the best energy-efficient windows for your home.
  2. 2. How Do I Choose? The best replacement windows for your home are a combination of comfort and long-term value. Only you can determine the best fit for your home, but ProVia can help with 5 tips.
  3. 3. 1. Know Your Zone The EPA has developed a climate zone map that provides recommended values in each region for two major characteristics that affect the energy efficiency of windows.
  4. 4. Climate Zone Characteristics The U-Factor measures the insulating value of the entire window as a complete system. The lower the U-Factor, the better the window insulates.
  5. 5. Climate Zone Characteristics The SHGC, or Solar Heat Gain Coefficient is the amount of heat from the sun that passes through the glass. Lower numbers mean glass is keeping heat from entering your home.
  6. 6. ProVia Replacement Windows All four of ProVia’s replacement window lines – ecoLite™, Aspect™, Endure™ and Aeris™ – offer exceptional comfort, quality and energy efficiency. Visit the Find Your Comfort Zone page for a side-by-side comparison of how each stacks up.
  7. 7. 2. Check the Specs Download replacement window specs from manufacturer websites and compare those figures to suggested performance values in your climate zone. Endure windows ENERGY STAR NFRC label
  8. 8. Energy Star Certification Also, make sure the windows have been independently tested to meet strict Energy Efficiency Standards and are ENERGY STAR® Certified.
  9. 9. ProVia & Energy Star ProVia's top window brands have been recognized as Most Efficient of ENERGY STAR 2017. In addition to having several windows recognized by ENERGY STAR, ProVia’s window lines are also among the best in the market for air infiltration and condensation resistance. PROVIA ENDURE® WINDOWS
  10. 10. Benefits of ENERGY STAR Certified Windows Benefits of energy-efficient windows: • Lower energy bills • Reduced use of the earth’s precious energy resources • Greater comfort • Reduced UV sun damage to floors, carpets and furniture
  11. 11. 3. Get a little technical Consider the components of your windows that improve energy efficiency: • Warm Edge Spacer System • Triple weather stripping • Frame construction PROVIA ENDURE® WINDOW FEATURES
  12. 12. Warm Edge Spacer System The right ones can reduce heat loss and interior condensation
  13. 13. Triple Weather Stripping Triple weather stripping: Standard on some replacement windows, triple weather stripping greatly reduces air infiltration, while providing optimal energy efficiency PROVIA ASPECT WINDOWS
  14. 14. Frame Construction Frame construction: Window frame extrusions are more than a series of walls and chambers to hold glass PROVIA ENDURE® PICTURE WINDOW CROSS-SECTION
  15. 15. Frame Material Frame material can also make a major difference. ProVia replacement windows are composed of SunShield® vinyl, a premium high-performance compound uniquely formulated to withstand the harsh effects of weather and ultraviolet light. PROVIA AERIS® WINDOW
  16. 16. Ask an Expert Still want a second opinion? Connect with a reputable window dealer who is familiar with your region and the energy efficiency challenges your replacement windows will face every day. PROVIA ASPECT® WINDOWS
  17. 17. 4. Look beyond the window During installation, make sure you see: • A little extra room for shimming and insulating • Existing trim work that is secure and big enough to fit your replacement windows • Fiberglass insulation or non-expanding foam insulation that fills every crevice • Proper flashing, drip cap included
  18. 18. 5. Research, research, research • Check the dealer’s rating at the Better Business Bureau or on the Guild Quality list • Visit a showroom or ask to see lists of referrals and jobs in your neighborhood • Look for a dealer that provides Good, Better, Best Product offerings, with a variety of price ranges for different performance levels
  19. 19. See Beyond the Brand • Don’t be afraid of a brand you’ve never heard of. • Check the specs and research the manufacturer and you’ll find the best replacement windows for your home, regardless of brand recognition.
  20. 20. Check out ProVia! For more in-depth information on ProVia’s window offerings, visit the windows section of the website.