What makes modern windows so incredibly energy efficient? A major contributor to the appeal of today’s latest glass technology is an innovation known as low emissivity. A surface with low thermal emissivity emits a very low level of radiant thermal energy, or as we common folk call it: heat.

Cover Glass USA Frameless Sliding Glass Doors

Low-E Glass Coating: Spectrally Selective Coatings

Heat can be found on the electromagnetic spectrum just below visible red light. Commonly referred to as infrared or IR for short, radiant heat has a longer wavelength than visible light does, and so low-e technology takes advantage of this fact at the microscopic level by using various layers of coating that are engineered to allow wavelengths in the range of visible light pass through, while strategically blocking both infrared radiant heat as well as ultraviolet light, or UV rays as they’re commonly known. Since the coatings only block certain wavelengths of the spectrum (the non-visible wavelengths) they are called spectrally selective coatings.

Visual clarity of modern low-e glass has been achieved by continually reducing the thickness of the spectrally selective coating down to around only 250 nanometers. A human hair is about 200 times thicker. Modern low-e glass manufacturers have optimized the manufacturing process, applying the microscopic layers using special coating machinery inside a vacuum chamber, reducing the thickness to eliminate the dark mirror-finish seen on earlier generations of low-e window glass. This optimizes thermal efficiency while the glass remains transparent.

The Benefits of Low-E Coating

Energy Efficient Glass Windows and Doors

Low-e technology has made it possible to have more energy efficient glass windows and doors available to the consumer. Upgrading your home or business with new frameless sliding glass doors and windows with a spectrally selective low-e coating, as opposed to traditional clear glazing, saves substantially on heating and cooling bills since summer rays stay out and warmth from the winter heater remains trapped within.

Low-E Technology vs. Conventional Glazing

Low-e beats traditional clear glazing by a long shot when it comes to exerting control over your interior climate. The conventional practice of clear glazing window glass lets ultraviolet light through which fades and damages carpet, hardwoods, and upholstery, and allows for excessive heat transfer, increasing the burden put on your air conditioner during hot days and your home’s heating system when it’s cold.

Energy efficiency has become a major concern for governments both at the federal and state level. The state of California has issued rules and regulations  - known as Title 24 - that establish energy efficiency standards for windows, roofs, lighting and HVAC.

Upgrading Your Home’s Glass Features

Rising energy costs and an increasingly unpredictable climate make the decision to upgrade to low-emissivity frameless sliding glass doors and windows ever wiser. The savings ultimately recouped from the initial expense mean that upgrading your home with the latest glass technology is a smart investment. 

 

How to Increase the Look and Value of Your Home | Cover Glass USA

 

 

MORE POSTS

Project Spotlight: Dana Point

September 18, 2019
Cover Glass presents a new product feature: etched frameless glass panels. Clients submit the design they want — and we do all the rest. The glass has the same integrity and strength as all our other sliding glass products: it’s j...

Read More

Project Spotlight: Luxurious Long Beach Outdoor Living

August 15, 2019
When you think of Long Beach, perfect weather and beautiful scenery are what come to mind. In this project spotlight, we tour a home that took full advantage of both by installing Cover Glass sliding doors.

Read More

How to Keep Your House Cool in the Summer

July 17, 2019
When summer temperatures soar to the triple digits, you can beat the heat by heading to the community pool or hitting up your favorite air-conditioned coffee shops and movie theaters. You will eventually have to go home, though, a...

Read More

[Project Spotlight] Taking Full Advantage of Amazing Harbor Views

July 10, 2019
When you’re lucky enough to have stunning scenery just beyond your home, you need to do whatever you can to take full advantage of the views. This home in Seal Beach did just that. Join us on a tour to see how Cover Glass products...

Read More