You’ve probably heard of Energy-efficient windows, but what does that mean? The term is used to describe window glass that has an energy efficiency rating (EER) of 10 or higher. These high-performing windows can reduce heating and air conditioning costs by 8% by reducing heat transfer through the window. In addition, these windows will help keep your home cooler during the summer months and warmer during the winter months. Overall, they’re a great investment for any homeowner looking to make their house more comfortable and save money on heating bills.
Glass Rating
What sets great windows apart from average windows? There are three main types of glass to consider: clear, frosted/tempered, and low-E (low emissivity).
- Clear glass offers no interference with natural light, providing the most economical option although not the most energy efficient one.
- Frosted or tempered glass provides protection from breakage while also blocking out some of the heat in your home; however, they can be more expensive than clear glass.
- Low-E (low emissivity) windows block about 90% of UV rays which helps keep furniture from fading over time as well as keeping your air conditioning bills down in warmer months.
How do Low-E glasses work?
These low-E energy-efficient windows will consist of a specialized coating that reflects the ultraviolet rays of the sun more efficiently without interfering with the visual elements of the window. In summer months, this means less solar heat will warm up the home which you’re AC is trying to cool. And that means less energy will be needed to cool your home.
How Many Panes of Glass Do Energy Efficient Windows Have?
At a minimum windows should have two panes, although additional ones will increase the insulation and energy efficiency. Also, the extra panes offer extra strength, so your windows will be better protected against cracking from impacts. The other advantage to multi-paned windows is the sound insulation they provide. Along with an energy efficient home they let you enjoy a quiet home!
Energy efficient windows offer are good investment
If you’re considering finding ways to save on your energy bill for the lifespan of your home, windows should be at the top of your priority list. Quality energy-rated windows can lower your electric, heating, and other bills significantly. These savings last a lifetime and benefit any homeowner who makes this investment.
Call (781) 309-7540 or contact us to get started with a no-cost Mass Save® home energy assessment.