Window Shopping Tips

• When shopping for new windows: look for the National Fenestration Rating Council (NFRC) label; it means that the windows are performance certified
• Lower U-Value = better insulation (e.g. U-value of 0.35 or below is recommended) 
• In warm climates, look for windows with double glazing & spectrally selective coatings that reduce heat gain
• Select windows with air leakage ratings of 0.3 cubic feet per minute or less
• In temperate climates with both heating and cooling seasons, select windows with both low U-values and low solar heat gain coefficiency (SHGC) to maximize energy benefits
• Look for Energy Star & EnergyGuide labels