Double or triple glazing in the Estonian climate

Customer question:

Do windows and doors need triple glazing in Estonia, or is double glazing enough?

Aru Grupp answers:

When choosing new windows and doors, homeowners often wonder whether to choose triple glazing or if double glazing is enough. This choice affects home comfort, energy efficiency, and heating costs during winter. In Estonia, winters are long and temperatures fluctuate. It is important that windows and doors retain heat and maintain a stable indoor climate.

Triple glazing keeps indoor temperatures more stable. It reduces heat loss. It also improves comfort, especially in homes with large glass surfaces. Windows with a lower Uw value lose less heat and keep the inner glass surface warmer. This helps prevent condensation. In practice, high-quality wood and wood-aluminium windows with triple glazing reach a Uw value of about 0.73–0.88 W/m²K. Double-glazed solutions often reach around 1.3 W/m²K. This difference is significant for energy efficiency in Estonia and can save on heating costs over time.

Suitability and practical use

Triple glazing is usually the best choice for energy efficiency. However, double glazing can work well in certain situations. It is practical and cost-effective for summer houses, seasonal buildings, or utility rooms where continuous heating is not critical.

In homes and new developments, triple-glazed windows and doors are usually preferred. They provide better sound insulation, a stable indoor climate, and lower energy use. This is especially important in modern architecture with floor-to-ceiling windows or wide glass façades. The larger the glass surface, the higher the potential heat loss. Low Uw glazing becomes critical in these cases.

A complete window solution ensures the best results

Choosing the right glazing requires a project-based approach. Consider the building’s architecture, use, and technical requirements. Aru Grupp offers a wide range of windows, sliding doors, and exterior doors in different thicknesses. This ensures the best solution for every building.

In one of our previous blog posts, “What type of windows are suitable for a modern home?”, we compared different Aru Grupp windows and their Uw values. This helps homeowners make an informed choice and find the solution that fits their needs and building.

Whether you choose wood windows, wood-aluminium windows, wooden exterior doors, or wood-aluminium doors, the choice goes beyond glazing alone. A well-planned, high-quality solution ensures a comfortable indoor climate, reduces energy costs, and increases home comfort and value for decades.

Explore our product range and ask for advice. We help you select windows and doors that fit your home’s architecture and needs while combining modern design, safety, and comfort.

📧 aken@arugrupp.ee
📞 +372 329 5650
🌐 www.arugrupp.ee