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      • At Everest, we are focused on improving the energy efficiency of all our windows and have produced this guide to explain everything you need to know from WER rating to U-values and what an energy efficient window is made from. Choose Energy Efficient Glazing Everest windows have U-values as low as 1.0 W/m 2 K.
      www.everest.co.uk/energy-efficiency/energy-efficient-windows/
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  2. Energy Efficient Windows Vs Regular Windows. Your windows contribute 20% to heat loss from a room. The difference in energy efficiency of single glazed windows compared to double or triple glazing is as much as 4.8 to 0.80 W/m2K. Even old double glazing to new is twice as energy efficient.

  3. Sep 19, 2024 · Everest double glazing energy efficiency. A+ rating as standard for uPVC casement windows. Triple glazing is A++. Its timber casement windows are A-rated, and its aluminium casement windows are B-rated (A for those with a timber sub-frame). Its uPVC and timber sliding sash windows are A-rated.

    • Blinds. The simplest way to reduce heat escape through a window is by fitting a blind. The Energy House at the University of Salford tested a variety of blinds and found the following reductions
    • Solid shutters. Solid shutters were a common feature in Georgian houses and have again started to become a popular form of window covering. In the research at the Energy House, plantation shutters demonstrated a 28% reduction in heat loss.
    • Curtains. The University of Salford continued its research and found that for anyone with single glazed windows, drawing curtains can save up to 20% heat loss.
    • Layer blinds and curtains. To get the best reduction in heat loss and to stop cold air and draughts a layered approach helps to make a difference. Think like the Georgians who had shutters with heavy drapes.
  4. May 2, 2024 · Everest energy efficiency. Most of Everest’s double-glazed windows are rated A or A+ for energy efficiency by the British Fenestration Rating Council (BFRC), though this drops to B for...

  5. Mar 12, 2024 · Enter, Everest, one of the largest and most trustworthy double glazing companies in the UK. With an excellent reputation and tons of options for customers to choose from, Everest can provide you with the perfect set of windows for your home – but what exactly do they have to offer? Let’s take a look.

  6. Triple glazed and double glazed windows made from the same material and to the same quality standard then the triple glazing should be around 20-30% more energy efficient. Based on U-values, Everest energy efficient triple glazing is 60% more energy efficient than old double glazing and 24% more efficient than our Everest energy saving double ...

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