Adequate thermal insulation and energy conservation through window renovation: What are the aspects to consider during the planning process?
Upgrading Windows for Maximum Energy Efficiency:
Ready to revolutionize your living space and reduce energy bills? Here's a guide to help you make the right choices when selecting new windows.
Embrace Sunlight and Save EnergyModern thermal insulation glazing can insulate against cold while letting in sunlight in winter, cutting heating costs. On the flip side, it keeps out summer sunlight, helping to cool down your rooms. For maximum daylight reduction, consider sun protection glazing or external sun protection systems, such as roller shutters, awnings, or blinds. Expert advice is crucial to choose the perfect combination of components. Check out local options from craftsmen found on ALTBAUNEU's website: https://www.alt-bau-neu.de/bergisch-gladbach/dienstleister/handwerker
Picking the Right FrameThe choice of frame material plays a significant part in energy efficiency. Wood and plastic frames, when properly insulated, conduct less heat outward compared to metal frames. Multi-chamber profiles or insulated passive house frames are common options today. A narrow frame enhances thermal insulation, allows more daylight, and creates space for reveal insulation.
Mastering the Art of GlassThe efficiency of a window depends largely on the glass. Single-glazed windows are a fast route to wasted energy; dual-pane or triple-pane glass offer better insulation. Inert gases like argon or krypton between the panes boost thermal performance. Low-E glass, with an invisible coating that reflects heat during winter and blocks it during summer, helps reduce heating and cooling needs. Laminated, tempered, tinted, and obscure glass provide UV protection and enhance energy efficiency.
Understanding the U-ValueThe U-value, crucial for state funding under the Building Energy Act (GEG), is a measure of energy efficiency. A lower U-value indicates better performance. In windows, the Uw-value is the most important factor.
Unlocking Subsidies for Energy-Efficient RenovationThe federal government supports window renovation as part of the federal subsidy for efficient buildings - individual measures (BEG EM). To use a KfW subsidy, the U-value of the new window should not be better than that of the adjacent wall. This rule prevents moisture and mold formation. Always coordinate all planned measures in an individual renovation plan (iRP), preferably with professional support from an energy advisor. Discover possible subsidies on ALTBAUNEU's website: https://www.alt-bau-neu.de/bergisch-gladbach/subsidy
https://www.alt-bau-neu.de/bergisch-gladbach/subsidy
A Special Case: Windows in Historic BuildingsIn historic buildings, preserving old or even historic windows helps maintain the facade's appearance. If the walls are thick enough, an additional inner window improves energy efficiency and sound insulation.
More in-depth knowledge about energy-efficient window renovation is available on ALTBAUNEU's website: https://www.alt-bau-neu.de/bergisch-gladbach/knowledge/building-shell/windows
Insights:
- Use dual-pane or triple-pane windows with inert gases like argon or krypton, and consider low-E glass for superior insulation.
- Vinyl, fiberglass, or composite frames are more energy-efficient than traditional aluminum frames.
- Thin, invisible coatings on low-E glass can reflect heat back into the room in winter and block it during summer.
- In historic buildings, an additional inner window can improve both energy efficiency and sound insulation.
- Consult an expert energy advisor when planning an individual renovation plan (iRP) to ensure subsidy eligibility.
Advance your home-and-garden lifestyle by opting for dual-pane or triple-pane windows with energy-saving features like argon or krypton between the panes and low-E glass. For historic buildings, explore the option of an additional inner window for improved other lifestyle aspects such as energy efficiency and sound insulation.
