We know our onions where window terminology is concerned and so we should after being involved in the industry for no less than two decades.
That makes us a reliable authority on the subject of U-values if you’ve been curious to find out exactly what they represent.
Let us proceed in telling you everything you need to know and turn you into something of an expert on them.
How are U-values and Windows Linked?
The connection between U-values and replacement windows lies in a U-value unit of a window signalling the amount of insulation that it offers.
A low figure points towards a window with excellent thermal insulation qualities, certain to be an instrument for instilling abundant warmth in a house.
Windows with a high thermal transmittance (a more complex word for U-value) don’t perform anywhere near as well at providing insulation and are susceptible to leaking out heat.
Evaluating U-values of Various Window Types
As you would probably expect, single glazed windows fare badly for thermal transmittance, especially in comparison to double glazing and triple glazing.
Some single glazed designs have a U-value of 6.0 W/m²K, which isn’t good when the average double glazed window can manage something around 1.2 and 3.7 W/m²K (the legal limit for replacement windows in UK building regulations is 1.4 W/m²K). Triple glazed windows can come in well below the required 1.4 W/m²K figure, often achieving a triple glazed unit u-value of less than 1.0 W/m²K.
The Significance of Energy Efficiency Glazing in Window U-values
A window can only perform to the highest level and insulate strongly if it includes energy-efficient glazing.
Energy-efficient glazing is how you refer to window glazing that’s expressly composed to curb heat loss and intensify thermal insulation. Low-E glass is a foremost component of it and incorporates an invisible coating designed to reflect heat.
The inclusion of energy-efficient glazing in double or triple glazing windows will herald elevated home warmth in winter and stem profuse heat gain in summer, bringing about cheaper energy too.
Take notice of U-values when choosing energy-efficient glazing and also think about its influence on privacy, security and sound insulation.
Visual’s entire suite of replacement windows come with energy-efficient glazing to help you keep energy use well-controlled and hopefully keep more money in your pocket.
You can always contact us if you’d like to become familiarised with any additional window terminology.
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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