5. Check for Proper Insulation
Insulation is a key factor in window performance. Properly insulated windows can prevent drafts and help maintain a consistent indoor temperature. Look for windows with high insulation ratings and features like double or triple glazing, which create insulating air spaces between panes.
The space between panes is often filled with argon or krypton gas, which improves thermal performance. Additionally, check the window’s spacer bars and seals to ensure they are designed to reduce heat transfer and condensation.
6. Evaluate the Installation Process
Proper installation is crucial for optimal window performance. Even the best windows can underperform if not installed correctly. Hire a reputable contractor with experience in window replacement. They should be able to properly measure and fit your windows, ensuring they are sealed and aligned correctly.
A professional installation can also help prevent future issues such as leaks, drafts, or operational problems. Look for contractors with positive reviews and ask for references before making a decision.
7. Look for Quality Certifications
Quality certifications provide assurance that the windows meet industry standards. Look for labels from organizations like the National Fenestration Rating Council (NFRC) and the American Architectural Manufacturers Association (AAMA). The NFRC label indicates the window’s performance ratings for factors like U-factor (insulation), SHGC (solar heat gain coefficient), and visible transmittance.
These ratings help you compare the energy efficiency of different windows. Certifications from AAMA can indicate that the windows have passed rigorous testing for quality and durability.
8. Consider Noise Reduction Features
If you live in a noisy area or want a quieter indoor environment, look for windows with noise reduction features. Laminated glass, for example, can help block out external sounds. It consists of two panes of glass with a layer of plastic in between, which dampens sound transmission.
Acoustic windows are specifically designed to reduce noise and can be particularly beneficial if you live near busy roads or airports. Check the window’s sound transmission class (STC) rating to gauge its noise reduction capabilities.