What is daylighting?

“Look at those windows!”

It’s a line people often say when in front of wall-to-wall or floor-to-ceiling windows. When paired with a spectacular view, like at the Residences at 66 High Street, it’s no surprise that people love grand windows. Large windows have more benefits than highlighting beautiful views, however. Continue reading to learn what daylighting can do for your home or office.

When builders use windows and skylights to light up a home or building, it is called daylighting. This process requires careful planning, but when done correctly, it has benefits for both residential and commercial properties. 

How does daylighting work?

For daylighting to work to its full potential, window placement is critical. The correct placement allows the right amount of natural light to enter each room, without excess heat or glare. 

In the United States, windows facing South and North are best. Windows facing South let in ample light during the winter months, and little direct sun in summer, when too much direct sunlight creates too much heat. North facing windows let in an even amount of natural light with little glare. 

East and West facing windows are not ideal for daylighting. East and West facing windows let in plenty of light in the morning and afternoon, but along with that comes glare and excess heat, which is especially cumbersome in summer months. 

Enlarged windows, glass doors, and strategically placed skylights optimize natural lighting from the sun.

Window Technology

With the advancement of window technology, daylighting is becoming more common. 

In the past, a wall of windows meant drafty winters and stuffy summers indoors. Now, windows are insulated, which helps to keep interiors cool in summer and warm in winter while providing loads of natural light. 

Tinted windows can be used to help reduce the glare from the sun. Electrochromic windows, or smart windows, go one step further, changing the darkness of the tint with the brightness of sunlight. Electrochromic windows have a variety of control options, which include an automated system or user control. 

Benefits of Daylighting

In buildings and homes with daylighting, windows and skylights provide most of the light you need, so overhead lights are not often necessary during the day. A light-colored ceiling enhances daylighting even more. 

When electricity is not being used for lighting, utility costs go down. In commercial buildings, where lighting accounts for a significant portion of electrical energy consumption, daylighting saves both energy and money. 

In addition, daylighting creates a more comfortable atmosphere both at home and at work. Sunlight boosts positive moods and increases productivity. This is particularly helpful throughout the winter, when shorter days means people have fewer chances to be outside during daylight hours. 

Daylighting fulfills the needs of some of the top needs in residential and commercial buildings: sustainability and employee health. Where would daylighting benefit you most?

What are energy efficient windows?

Energy efficiency is overwhelmingly important to homeowners, which was made clear in a 2019 study conducted by the National Association of Home Builders. 

For homeowners, installing energy efficient windows is one of the easiest ways to reduce energy consumption.  Consequently, lower energy consumption means lower monthly heating and cooling bills. 

What are energy efficient windows?

Energy efficient windows work with the seasons. In the winter, they keep heat inside the home, while in the summer, they keep the cool air in. The climate zone where you live determines the type of window that is qualified for your location. 

The easiest way to determine if a window is energy efficient is to select ENERGY STAR rated products. ENERGY STAR rated windows are manufactured by an ENERGY STAR partner, tested and certified by the National Fenestration Rating Council, and meet strict energy efficiency guidelines set by the US Environmental Protection Agency.

Features of an Energy Efficient Window

For windows to be considered energy efficient, they must meet specific criteria. These include:

 

  • Low-E Glass. A special coating on the windows helps to reflect infrared light and ultraviolet light. This not only increases the insulation, but helps to protect carpet and furniture against fading from the sun.
  • Panes of Glass. Energy efficient windows contain at least two panes of glass, but can have three or more panes for more insulation. 
  • Warm Edge Spacers. Edge spacers keep the panes of glass secure at an equal distance apart. Warm edge spacers are non-metallic, helping to reduce the loss of heat around the edges of the window.
  • Gas Fill. In between the panes of glass, non-toxic, odorless, and colorless gases can be added. These gases help increase insulation. 

 

 

Framing Options

In addition to creating the aesthetic style of the window, window frames are as important as glass when it comes to energy efficiency. There are numerous options for ENERGY STAR rated window frames. All of these framing options are designed to provide optimal insulation:

 

  • Wood 
  • Fiberglass
  • Vinyl
  • Aluminum 
  • Combination: Made of different materials, used separately throughout the frame (such as a wood interior and fiberglass exterior). 
  • Composite: Manufactured with blended materials. 

 

 

We know how important it is to both reduce energy usage and keep the home comfortable. Selecting windows that are energy efficient is an easy way to accomplish both.

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