The U.S. Department of Energy has expressed concerns about potential heat loss and gain associated with window selections. In fact, the government agency has said that your windows can contribute to about 50% of these gains or losses. Additionally, the 25% rule can apply if you have older windows. This rule says that 25% of your total energy consumption is attributed to window leaks. You learn what actions to take by learning how your window selections affect energy efficiency.
Why Pane Count Matters
Double- or triple-pane glass provides improved insulation and prevents heat transfer. Contractors recommend multiple panes instead of single-pane windows because they provide greater insulation and thermal resistance. Installing multiple-pane windows can reduce heat loss by up to 90% and improve energy efficiency.
How Gas Fills Help
Gas-filled windows replace air between panes with argon, a dense gas that slows heat transfer. By choosing these windows, you reduce the U-values of each window by at least 20%. Gas-filled windows reduce heating and cooling costs and minimize condensation. They also provide thermal insulation. If you have a greater window budget, you may consider xenon or krypton windows.
Low-E Glass Coating
Glass coating for your windows can improve your home’s energy efficiency. Manufacturers apply a thin, transparent layer onto the glass. This coating reflects infrared heat and decreases thermal transfer by 50%. Low-E glass coating is most effective at preventing cold spots and temperature fluctuations. It can also block almost all ultraviolet light.
Do Frame Materials Matter?
Window frames account for about 20% of heat loss from windows. Fiberglass is among the highest-rated frame materials for windows. It is durable and provides superior insulation. Composite frames combine polymers and wood and are a combination of wood and can also offer high-quality insulation.
When choosing frame materials, consider durability, maintenance and any additional protection requirements specific to the materials. For example, wood is natural but requires more maintenance to stop degrading. Metal frames are often cheaper but require an insulating strip between each frame.
Window Operation Type
The window operation type determines the potential for air leaks. It also detects the quality of the seal. Contractors may recommend fixed or picture windows for some living spaces as they are fully sealed. Casement and awning windows are tightly sealed but open in opposite directions.
When choosing a window operation type, consider the air leakage rate, seal quality and ventilation strategy. You can discuss weather stripping and seals with a contractor and determine which choices don’t decrease efficiency.
Window selection affects your home’s energy consumption. When choosing windows, it’s important that you pick models that stop heat transfer and improve energy efficiency. You can take action to correct problems by understanding how your windows affect energy efficiency. Call King Quality for all of your window needs in Long Island, NY.
