Energy Star Labels
Understanding Ratings

Energy Rating Example
Navigating window and glass ratings can be perplexing, as higher numbers are preferred in some cases while lower numbers are preferred in others. To assist you, here are some helpful tips.

Energy Star
CDN Climate Zone

Canada Window Energy Star climate zones for windows
Even though windows do not consume energy, they can be a significant source of heat loss in a home. ENERGY STAR qualified windows will save you money by reducing the overall annual energy costs. ENERGY STAR windows will also help keep your home more comfortable all-year-round and may have less condensation in cold weather compared with a conventional non-certified product.

Energy Star
Comparing Products

When deciding where to buy your windows, finding comparative information is straightforward. However, interpreting this data can be overwhelming.

Performance Rating
Visual Transmittance (VT)

Understanding Visible Light Transmittance
The amount of light you let into your home is a matter of personal taste. When replacing your windows, knowing what VT is and how to control it will help you get it right.

Performance Rating
Solar Heat Gain (SHGC)

the higher the SHGC, the number, the greater the solar gain
Let the sun shine in, or not. The Solar Heat Gain Coefficient (SHGC) measurement can help you achieve a desired increase or decrease in the amount of solar radiation (heat) passing through a window into your home.

Performance Rating
Energy Star (ER)

The higher the ER rating number, the more energy-efficient the window or door.
Although windows and doors don’t consume energy themselves, they can be a significant source of energy loss. If you're purchasing windows with energy efficiency in mind, the ER helps you make standardized product comparisons.

Performance Rating
Air Leakage (AL)

Image showing air leakage scale
Air leakage (AL) is becoming an increasingly important factor when selecting energy-efficient windows and doors, especially for homeowners in cold climates like Ottawa. With rising energy costs and a focus on energy efficiency, understanding AL can help you choose products that reduce drafts and maintain indoor comfort. But what exactly is air leakage, and why should you care?

Performance Rating
R-value of Insulation

Move over, traditional window specs – the R-value is becoming a popular measurement in the world of window sales! Though it's been around for a while, this rating is gaining traction as an indicator of window efficiency. But why the sudden surge in popularity? Keep reading to find out.

Performance Rating
U-factor (U-Value)

The lower the U-value, the better the window is at keeping the heat in during the winter and the better it insulates
When choosing windows, two key metrics to consider are the U-factor (or U-value) and the Solar Heat Gain Coefficient (SHGC). Understanding these can help you make informed decisions for better home comfort and energy efficiency.

Learn About Windows
E-BOOK GUIDE

Everything you need to know about windows guide
Considering replacement windows? Cut through the complexity with our "Almost Everything You Need to Know About Windows" guide. Download the 32-page PDF now for detailed information, diagrams, and expert advice to help you make an informed decision.

Energy Efficiency - What About Storm Doors?

When protecting your home from Ottawa’s harsh weather, every layer of defence counts. Many homeowners consider storm doors as an extra barrier against the elements — but are they truly the best investment for your home?

Energy Efficiency
Weatherstripping

Energy Efficiency
Costs vs Comfort

Energy-efficient doors increase comfort and reduce energy costs. With environmental concerns and sky-rocketing fuel costs, more and more homeowners are opting for insulated front doors, but which door material will produce the best result? Read on to find out, then compare the Energy Star® ratings of the products you may be considering.

Sliding Patio Doors
Exploring Options

image of white sliding patio door from inside home
Thinking about replacing your patio door or looking to install one in a new home? There are plenty of patio door options to consider – whether it's aesthetics, functionality, security, energy efficiency, or costs. Here are some tips to help you get exactly what you are shopping for.

Swinging Patio Doors
Exploring Options

Looking to enhance your indoor-outdoor living experience with a patio door? Swing open the possibilities with swinging patio doors, also known as garden doors. These elegant additions not only add charm to your home but also offer functionality, security, and energy efficiency. Here's everything you need to know to make the right choice for your space: