Why Warm Edge Spacers Are More Important Than You Think
The colder months often come with higher energy bills. While many homeowners assume their heating system is to blame, the real culprit might be poorly insulated windows. Windows play a massive role in maintaining a comfortable indoor temperature. Even with double or triple glazing, lots of heat can escape if your windows aren’t energy efficient. Warm edge spacers are an excellent way to keep cold air out of your home, even when temperatures drop in the winter. Get the details about this lesser-known component of an energy-efficient window.
What Are Warm Edge Spacers?
Let’s start by explaining what a warm edge spacer is. A spacer is the continuous frame that separates the panes of glass in a double or triple-glazed window. It holds the glass apart to create a cavity, which is usually filled with an insulating gas like argon or krypton. A warm edge spacer, then, is specifically designed to minimize heat transfer. The term “warm edge” refers to the fact that the internal edge of the window is always warm to the touch. Manufacturers create these spacers from materials that naturally resist thermal transfer, which prevents the window from letting cold air enter your home once installed.
How Warm Edge Spacers Work
Heat naturally moves from warm areas to cold areas. During winter, the warm air inside your home pushes against your windows, trying to reach the cold air outside. The spacer bar sits right at the perimeter of the insulated glass unit. Warm edge spacers work as a thermal barrier. When indoor heat reaches the edge of the glass, the spacer blocks it from moving through to the outer pane. This keeps the inner pane of glass closer to room temperature. It also seals the insulating gas securely inside the window’s cavity and ensures the window stays properly insulated.
Get to Know the Types of Warm Edge Spacer Materials
Different manufacturers use different materials for the best thermal efficiency. Here are some of the most common:
- Silicone and Foam—These non-metallic materials offer excellent thermal performance and naturally flex with the window as it expands and contracts due to temperature changes. Beyond that, foam spacers are often designed to absorb trapped moisture and prevent fogging.
- Thermoplastic—Thermoplastic spacers offer the gold standard in durability and prevent argon gas from leaking out of the window cavity. During manufacture, these spacers are applied directly to the glass to create a seamless, continuous seal.
- Stainless Steel—Stainless steel conducts heat at a lower rate compared to standard aluminum. Spacers made from this material are ideal for large or heavy window units that require structural rigidity.
Energy Efficiency: The Top Reason to Choose Warm Edge Spacers
Energy efficiency is the top reason why so many homeowners prefer windows with warm edge spacers. As a result of this efficiency, you’re likely to see a reduction in your heating bills. When you introduce warm edge spacers, your heating system usually requires less energy to keep your home at a comfortable temperature. You might notice fewer cold drafts when sitting next to your windows and feel more cozy at home overall. Beyond that, warm edge spacers significantly reduce condensation. Because these spacers keep the interior glass edge warm, water droplets are far less likely to pool on your window sills and cause mold growth.
How Do Warm Edge Spacers Compare to Traditional Ones?
Warm edge spacers are significantly different from the traditional aluminum ones. While aluminum is structurally sound and lightweight, it’s also a fantastic conductor of heat. When you use an aluminum spacer in a double-glazed window, the edges of the window act like a highway for heat loss. The center of the glass might be well-insulated by the argon gas, but the perimeter gets freezing cold in the winter. This temperature difference causes the glass to cool down rapidly, leading to heavy condensation and wasted heating energy. Warm edge alternatives solve this issue with massive improvements in thermal resistance.
Why Choose Rosati Windows for Your Next Upgrade
If you’re tired of your HVAC system working overtime during the Columbus, OH winter, consider a window upgrade. The team at Rosati Windows can help you find the right products equipped with all the advanced components you’re looking for. We’ll work with you to stick to the right budget while still getting you the features you need for best results. Contact us today to start discussing your next home improvement project.
