The U-value measures how well a material insulates and prevents heat from escaping – a key factor in energy-efficient windows.
If you’re not deeply involved in the world of windows like we are, terms like U-value might not be second nature. But since it often comes up in discussions about replacement windows, we want to break it down for you.
Let’s dive deeper into U-values and why they matter, so you can make informed choices, just like the experts.
Why U-Values Really Matter for Windows
U-values are closely tied to replacement windows. They measure how well a window insulates.
The lower the U-value means the better the window’s ability to trap heat, providing warmth and enhancing energy efficiency in your home.
A higher U-value, known as thermal transmittance, indicates poor insulation performance, meaning the window allows heat to escape, which can lead to higher energy costs and reduced comfort.
U-values Across Different Windows
Single glazed windows are ranked last for their thermal abilities, with double and triple glazing being much more energy efficient with lower U-values. With U-values reaching as high as 6.0 W/m²K, they offer very poor insulation.
To compare, double-glazed windows typically have U-values ranging from 1.2 to 3.7 W/m²K, with current building regulations requiring a minimum of 1.4 W/m²K.
Triple-glazed windows can achieve impressive U-values of less than 1.0 W/m²K, providing superior insulation and energy efficiency.
Invest in Energy-Efficient Glazing
Energy-efficient glazing is essential for window performance and improving home insulation standards.
It refers to glazing specifically designed to reduce heat loss and enhance thermal insulation. Low-E glass is a key element, featuring an invisible coating that reflects heat back into your home.
When used in double or triple glazing, energy-efficient glazing helps keep your home warmer in winter, cooler in summer, and lowers energy bills.
Choosing the right energy-efficient glazing requires considering U-values alongside other factors such as privacy, security, and sound insulation needs.
Get a quote for County’s energy efficient windows. They can save you money and energy in the long term. Our advisors can also assist you with any window terminology you don’t understand, taking you through energy rating labels.
LOOKING TO REPLACE YOUR WINDOWS?
We have a fantastic range to choose from so whether it’s a modern style or traditional timber effect windows – we are confident that we will have windows to improve any home to give it the finished look with elegance.
LOOKING TO REPLACE YOUR WINDOWS?
We have a fantastic range to choose from so whether it’s a modern style or traditional timber effect windows – we are confident that we will have windows to improve any home to give it the finished look with elegance.
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