What is u-Value?

The U-value is a measure of the rate of heat loss through a material or assembly of materials. It is typically used to evaluate the thermal performance of building components such as windows and doors. The lower the U-value, the better the insulation of the material or assembly.

For timber doors and windows, the U-value is determined by the type of glazing, the thickness of the timber, and the type of insulation used in the construction of the door or window. U-value is measured in W/m²K.

When it comes to timber doors and windows, the U-value can vary depending on the specific product. For example, a timber sash window with single glazing will have a higher U-value than a timber window with double glazing and low-e coating. Similarly, a timber door with a single glazed panel will have a higher U-value than a timber door with double glazing.

It’s important to note that, while U-value is an important factor in determining the thermal performance of windows and doors, it is not the only factor. Other factors such as air tightness, solar gain and ventilation also play a role in determining the overall thermal performance of a window or door.

At Seaton Joinery Ltd, we can provide you with the U-value of our products and can help you choose the right option for your specific needs and preferences. We have a variety of options available, such as double glazing, argon filled glazing and low-e glazing, all of which can help improve the thermal performance of our products and make your home more comfortable and energy efficient.