U-Values For Windows & Doors Explained

If you’re shopping around for the perfect windows and doors for your home renovation project and are wondering what ‘U-values’ are, we’ve got you covered. When you’re revamping your dream home, it can be time-consuming learning the builder’s lingo. But, with this quick guide, you’ll be well-versed in what the numbers mean so you can choose the best materials for your project.

What are U-Values?

When it comes to U-values, the lower the better. In fact, the closer you can get to zero, the better! It’s a measurement of heat loss. It’s a rating for the thermal performance of the glass and frames of slimline windows and doors. It’s an indication of how effectively the windows will keep your home warm in winter and cool in summer.

Modern window designs are consistently improving, but some will have better thermal efficiency than others. With the effects of climate change, insulation is an increasingly important consideration for interior comfort.
These measurements also apply to many core building materials, including walls and floors.

What is a good U-Value?

Building regulations for thermal efficiency state a maximum U-value of 1.8 W/m²k for replacement doors. However, this is a maximum. A good U-value is one that is close to zero.

The brands we sell at Klosen go the extra mile with their designs to deliver optimal insulation.

For instance, Senior Architectural Systems provides a polyamide aluminium that’s thermally enhanced. This weathertight design delivers a substantial improvement in your home’s carbon footprint and lowering energy bills.

The windows we supply also deliver a fantastic level of noise insulation. This means noise from the outside world won’t infringe on your private home space.

Ready to get your project underway?

Browse the premium selection of slimline aluminium windows and doors from leading brands at Klosen today. We can help with all your installation requirements, offering exceptional customer service. Contact us or request a quote today.